Unpaired mr ct brain dataset for unsupervised image translation. For example, Wolterink et al.

Unpaired mr ct brain dataset for unsupervised image translation The paired brain CT and MR images were shuffled to create an unpaired dataset . Al-Kadi, Israa Almallahi, Alaa Abu-Srhan, AM Mohammad Abushariah, Waleed Mahafza Abstract The data presented in this article deals with the problem of brain tumor image translation across different modalities. Given a source MR image s 0and a target CT image x 0, we used a VAE-based unsupervised frequency conversion mod-ule to convert the high-frequency and full-frequency infor-mation of the MR image into its counterpart in the CT image. Jan 1, 2022 · The proposed E2E:2CH+U method demonstrated robustness and good generalizability to unseen data. Unpaired MR-CT brain dataset for unsupervised image translation Omar S. The model training stage (a) enables the diffusion model have the ability to generate target domain (MR) images with structural edge guidance, while in the image translation stage (b) we use or drop the edge information from the source domain (CT) in interleaved manner to reduce the domain gap between Paper Info Reviews Meta-review Author Feedback Post-Rebuttal Meta-reviews Authors Minh Hieu Phan, Zhibin Liao, Johan W. All procedures followed are consistent with the ethics of handling patients’ data. The MR images of each patient were acquired with a 5. 五、实验结果 Sep 29, 2020 · Image synthesis from corrupted contrasts increases the diversity of diagnostic information available for many neurological diseases. Jun 1, 2022 · The provided dataset represents unpaired brain magnetic resonance (MR) and computed tomography (CT) image data volumes of 20 patients. May 20, 2022 · The data presented in this article deals with the problem of brain tumor image translation across different modalities. May 22, 2023 · The provided dataset represents unpaired brain magnetic resonance (MR) and computed tomography (CT) image data volumes of 20 patients. The provided dataset represents unpaired brain magnetic resonance (MR) and computed tomography (CT) image data volumes of 20 patients. The provided dataset represents unpaired brain magnetic resonance (MR) and computed tomography (CT) image data volumes methods), FDDM demonstrates superior performance in MR-to-CT translation on both brain and pelvis datasets. Susskind, W. Every Pixel Has its Moments: Ultra-High-Resolution Unpaired Image-to-Image Translation via Dense Normalization Oct 8, 2019 · Magnetic resonance (MR) and computer tomography (CT) images are two typical types of medical images that provide mutually-complementary information for accurate clinical diagnosis and treatment. Oct 10, 2019 · Three medical datasets were obtained to work with the considered methods of unpaired MRI to CT translation. Oct 23, 2024 · The overview illustration of our proposed framework for unpaired medical image translation. Jan 1, 2022 · The network contains two subnetworks: (1) an image synthesis subnetwork to generate synthetic MR/CT images from the input image pairs; and (2) a dual-channel registration subnetwork that predicts the deformations in MR and CT channels and fuses the two into a final diffeomorphic deformation field. 2). Wolterink et al. The frequency conversion module can be either GAN- or VAE-based, which Nov 18, 2024 · AbstractBrain imaging plays a crucial role in the diagnosis and treatment of various neurological disorders, providing valuable insights into the structure and function of the brain. Mar 30, 2022 · Search life-sciences literature (43,822,668 articles, preprints and more) Search. (a) Original MR and synthesised CT images. Using mp-MRI images of 255 BCa patients collected in our department, we here propose a one-to-many unsupervised I2I translation network with region-wise semantic Oct 17, 2024 · They work separately and use different techniques for sampling the data from the whole space of gathered datasets. In addition, obtaining paired training datasets for several applications is relatively expensive and difficult [13]. Stoyanov Danail, et al. (2017) introduced a 2D method for automated MR-to-CT image synthesis using CycleGAN, which could be trained without the need for paired training data. Cross-modality domain adaptation techniques have been tested on this dataset ( Chen et al. Aug 1, 2021 · For the unpaired dataset, we use our collected MR-CT brain images from the Radiology Department of the Jordan University Hospital (JUH) that has been collected between the period of April 2016 and Nov 19, 2023 · Diffusion models have demonstrated significant potential in producing high-quality images in medical image translation to aid disease diagnosis, localization, and treatment. I. A multicenter bladder cancer MRI dataset and baseline evaluation of federated learning in clinical application: 膀胱癌MRI: Unpaired MR-CT brain dataset for unsupervised image translation: MR-CT脑数据: WORD: A large scale dataset, benchmark and clinical applicable study for abdominal organ segmentation from CT image: 腹部器官 在本文中，我们提出了一种配对-未配对无监督注意力引导生成对抗网络 (uagGAN) 模型，用于将 MR 图像转换为 CT 图像，反之亦然。 uagGAN 模型使用配对数据集进行预训练以进行初始化，然后使用级联过程在未配对数据集上重新训练。 Oct 21, 2023 · Omar S. Medical Image Translation, Yonsei University arXiv 2024. Mar 25, 2020 · In addition to unpaired image-to-image translation problems, such as CT-to–cone beam CT image translation and MR-to-CT image translation, CycleGANs allow models to rely on pure adversarial loss while simultaneously making inferences based on their input image conditions (37,38). 图像转换（Image-to-Image Translation, I2I）属于有条件图像生成中的一项以图像为输入条件的任务，其目的是实现图像风格域的转换（例如经典的马变斑马等）。I2I任务最先由 Pix2Pix [1]提出，Pix2Pix是有监督的，… Medical imaging technology serves as a crucial instrument for disease screening and medical diagnosis in clinical medicine, with computed tomography (CT) and magnetic resonance imaging (MRI) standing as prevalent and significant diagnostic imaging techniques. These equations represent the most commonly used GAN losses, aimed at making the generated results conform more closely to the given data distribution through the discriminator. , et al. Feb 28, 2025 · This paper describes a dataset of brain and pelvis computed tomography (CT) images with rigidly registered cone‐beam CT (CBCT) and magnetic resonance imaging (MRI) images to facilitate the [3D cGAN based cross-modality MR image synthesis for brain tumor segmentation] [Deep CT to MR Synthesis using Paired and Unpaired Data] [GAN-based synthetic brain MR image generation] [StainGAN: Stain Style Transfer for Digital Histological Images] Mar 14, 2024 · Background Magnetic resonance imaging (MRI) plays an increasingly important role in radiotherapy, enhancing the accuracy of target and organs at risk delineation, but the absence of electron density information limits its further clinical application. The Jan 6, 2023 · Thus, the aim of this work was to develop and evaluate a novel image-to-image translation regularization approach for unpaired 3D follow-up stroke patient datasets. The MR cases are acquired using Siemens Verio scanner, while the CT images Mar 1, 2022 · The dataset contains MR and CT brain tumour images with corresponding segmentation masks. In this paper, we propose a paired–unpaired Unsupervised Attention Guided Generative Adversarial Network (uagGAN) model to translate MR images to CT images and vice versa. 3, the qualitative results include the visualization of paired MRI/CT brain images/synthetic CT images and the highlighted ROIs of corresponding CT images/synthetic images. 1) yielded high accuracy when applied directly to paired MR/CT dataset with real deformations (Section 3. The images . This problem is further It is therefore suggested that future studies investigate whether within-modality synthesis models could be used to generate paired datasets. The dataset consists of unpaired brain CT and MR images of 20 Mar 30, 2022 · The MR-CT brain image volumes were acquired by the Diagnostic Radiology Department of the Jordan University Hospital (JUH). [ 10 ] applied cycle generative adversarial network (CycleGAN) [ 9 ] with unpaired brain MR and CT images, to successfully generate high-quality synthetic CT images. Learning from simulated and unsupervised images through adversarial training. The dataset from the University Hospital of Bern (Site2) consists of 19 unpaired MR-CT volumes, which are divided into training (13 volumes) and testing sets (6 volumes). Figure15. Mar 30, 2022 · The data presented in this article deals with the problem of brain tumor image translation across different modalities. Download scientific diagram | MR-CT bidirectional translation results of paired-unpaired uagGAN model with transfer learning for abnormal cases, where (a) and (c) are real images, and (b) and (d or GAN can achieve unsupervised image translation, but the image quality is often subpar. 13 MRI-CT volumes from the same patients that were captured less than three months apart are registered using rigid registration algorithms. The CUT methodology also incorporates the concept of identity mapping and utilizes InfoNCE in this setup to stabilize training, functioning Unlike the paired-data-based methods in [16,19,20,22], Wolterink et al. We refer real images of CT and MR as I A and I B respectively. dib. Image-to-image translation has been widely employed in medical applications, including but not limited to cross-modality image registration, low-dose CT denoising, fast MR Paper Info Reviews Meta-review Author Feedback Post-Rebuttal Meta-reviews Authors Minh Hieu Phan, Zhibin Liao, Johan W. Therefore, the aim of this study is to develop and evaluate a novel unsupervised network (cycleSimulationGAN) for unpaired MR-to-CT synthesis Sep 23, 2023 · For the lack of paired MR and CT images, an increasing number of unsupervised methods have been developed to learn from unpaired MR and CT training data. Nov 21, 2024 · The proposed modifications utilize the paired MR and MRCAT images to ensure good alignment between input and translated images, and unpaired CT images ensure the MR → \rightarrow CT model Aug 1, 2024 · We propose a style-embedding representation learning for unsupervised and unpaired abdomen CT and MR image translation. In addition, the best weights obtained during the training stage are shared to be used for inference or retraining. The dataset contains T2-MR and CT images for 20 patients aged between 26 and 71 years with mean-std equal to 47-14. In the Unsupervised image translation Paired and unpaired data MR-to-CT Image synthesis Transfer learning ABSTRACT Medical image acquisition plays a significant role in the diagnosis and management of diseases. However, most of the Furthermore, MRI and CT image registration and translation have been developed to guide the thermal ablation of liver tumors, which demonstrated enhanced accuracy and fast computation compared Jan 8, 2024 · 20/07/2024 - Model enhancements: We include selection strategies to choose similar MRI/CT matches based on the position of slices. As shown in Fig. py. 2022. Then we use the HR MRI to evaluate the reconstruction metrics. or GAN can achieve unsupervised image translation, but the image quality is often subpar. Paired MRI/CT datasets are useful for a variety of applications, including training models for cross-modality synthesis and training models to perform other tasks that require paired data. Magnetic Resonance (MR) and Computed Tomography (CT) are considered two of the most popular modalities for medical image acquisition. Regarding CT-MR image synthesis, the acquisition of CT and MR images separately is time-consuming, costly, and a burden to the patient. . The provided dataset represents unpaired brain magnetic Jul 1, 2023 · This heart segmentation dataset includes unpaired CT and MRI scans for 40 patients (20 CT and 20 MRI). This problem is further exacerbated when the images from the source and target modalities are heavily misaligned. Verjans, Minh-Son To Abstract Medical image synthesis is a challenging task due to the scarcity of paired data. RELATED WORK A. toanbd1}@vinai. 4 and 6 scans are respectively used as test sets for a generative adversarial network (GAN) with unpaired MR and CT im-ages. For the unpaired dataset, we use our collected MR-CT brain images from the Radiology Department of the Jordan University Hospital (JUH) 7 A. We keep an image buffer that stores the 50 previously created images. The dataset consists of unpaired brain CT and MR images of 20 patients scanned for radiotherapy treatment planning for brain tumors. Webb. Advanced search Download scientific diagram | Paired and unpaired training datasets. The private dataset consists of paired CT, MRI T1-weighted and mask Bibliographic details on Unpaired MR-CT Brain Dataset for Unsupervised Image Translation. In unsupervised image translation tasks, we do not have paired (MR, CT) images, and we can only utilize the marginal distributions of their respective datasets. It gives us a way to learn the mapping between one image domain and another using an unsupervised approach. The dataset was acquired between the period of April 2016 The data presented in this article deals with the problem of brain tumor image translation across different modalities. Unpaired MR-CT brain dataset for unsupervised image translation Published in: Data in Brief, June Learn2Reg is a dataset for medical image registration. Oct 1, 2023 · The dataset comprises brain MR and CT volumes from 262 subjects. Nevertheless, current diffusion models have limited success in achieving faithful image translations that can accurately preserve the anatomical structures of medical images, especially for unpaired datasets. 2 CycleGAN supervision The two generators Ensuring anatomical consistency in unpaired I2I translation is challenging, particularly when the input and output domains exhibit substantial structural biases. Jul 30, 2023 · We propose a new method using unsupervised generative attentional networks with adaptive layer-instance normalisation for image-to-image translation (U-GAT-IT), which specialised in unpaired image Sep 1, 2023 · Similar to the cycleGAN, our DC-cycleGAN model (see Fig. Sep 1, 2023 · Our research aims to synthesize images from the existing sequences of mp-MRI to substitute missing or low signal-to-noise ratio sequences through image-to-image (I2I) translation. They propose modality independent neighborhood descriptor as a structure Dec 1, 2023 · This approach provides a promising solution for generating high-quality MR images from CT images, which can benefit many applications in the field of medical imaging. Abu-Srhan et al. The synthesized full-frequency CT images are then fed into a forward diffusion process (as a low-pass filter), and Given a source MR image s 0and a target CT image x 0, we used a VAE-based unsupervised frequency conversion mod-ule to convert the high-frequency and full-frequency infor-mation of the MR image into its counterpart in the CT image. In an unpaired GAN paradigm, it is desirable for the synthesized image to look real and be paired up with an input image in a meaningful way. The purpose of this paper is to review studies which use deep Structure-Preserving Synthesis: MaskGAN for Unpaired MR-CT Translation 5 The synthetic MRI output from the CT scan yis defined similarly based on the attention masks and the contents from the MR generator. 01777v1 [eess. Unpaired Pediatric brain MRI-CT images (Private dataset) Manual tracing of the head, body, and tail of the hippocampus on images was completed following a previously published protocol [Pruessner, J. 1. Learn2Reg covers a wide range of anatomies (brain, abdomen, and thorax), modalities (ultrasound, CT, MR), availability of annotations, as well as intra- and inter-patient registration evaluation. Magnetic Resonance (MR) Imaging and Computed Tomography (CT) are the primary diagnostic imaging modalities quite frequently used for surgical planning and analysis. Tuzel, J. 2 displays the concerned MR to CT Sep 12, 2023 · Background: CT scans are often the first and only form of brain imaging that is performed to inform treatment plans for neurological patients due to its time- and cost-effective nature. Al-Kadi, Israa Almallahi, Alaa Abu-Srhan, A. The synthesized full-frequency CT images are then fed into a forward diffusion process (as a low-pass filter), and Jul 6, 2022 · Wolterink et al. Recently the image-to-image translation has experienced significant levels of interest within medical research, beginning with the In this paper, we propose a paired-unpaired Unsupervised Attention Guided Generative Adversarial Network (uagGAN) model to translate MR images to CT images and vice versa. Volumetry of hippocampus and amygdala with high- resolution MRI and three-dimensional analysis software: minimizing the discrepancies between laboratories. Feb 28, 2020 · For testing purposes, on one hand, compare to the image translation experiment 13 using CMP Facades dataset (train images: 400, test images: 100) and the ADNI dataset for MRI to CT translation May 20, 2022 · The data presented in this article deals with the problem of brain tumor image translation across different modalities. Such findings suggest that the simulated May 20, 2022 · The data presented in this article deals with the problem of brain tumor image translation across different modalities. Given a source MR image s 0 subscript 𝑠 0 s_{0} and a target CT image x 0 subscript 𝑥 0 x_{0}, we used an unsupervised frequency conversion module that transformed the high-frequency and full-frequency information of the MR image into the counterparts of the CT image. Computers in Biology and Medicine 136 (2021) 104763 Fig. Aug 1, 2023 · Structure-Preserving Synthesis: MaskGAN for Unpaired MR-CT Translation 5 The synthetic MRI output from the CT scan yis defined similarly based on the attention masks and the contents from the MR generator. Brain MR and CT images of 24 patients were analyzed. A GAN consisting of two synthesis convolutional neural networks (CNNs) and two discriminator CNNs was trained with cycle consistency to transform 2D brain MR image slices into 2D brain CT image slices and vice versa. An example of this is the drastic visual difference between CT and MRI for leg and spinal regions as captured in standard exams (Figure 1), where typically CT images display two legs while MRI scans only show one, and CT images capture Slice-Consistent 3D Volumetric Brain CT-to-MRI Translation with 2D Brownian Bridge Diffusion Model Kyobin Choo, Youngjun Jun, Mijin Yun, Seong Jae Hwang. Sep 1, 2021 · However, paired training datasets are not available for many tasks in practice. IV] 3 Dec 2020 3 VinAI Research, Vietnam 2 FPT University Department of Computer Science at University of Arkansas in Fayetteville {v. It's not necessary that all source and target images are perfectly overlaid, the network will learn anyway the distributions if the patch_size is large to have Flow-based Deformation Guidance for Unpaired Multi-Contrast MRI Image-to-Image Translation Toan Duc Bui ⋆1 , Manh Nguyen1,2 , Ngan Le3 , and Khoa Luu3 1 arXiv:2012. The uagGAN model is pre-trained with a paired dataset for initialization and then retrained on an unpaired dataset using a cascading process. Jun 1, 2022 · The provided dataset represents unpaired brain magnetic resonance (MR) and computed tomography (CT) image data volumes of 20 patients. Diffusion models can synthesize high-quality images but struggle with unsupervised training. Oct 21, 2023 · Omar S. This limitation is typically attributed to the following situations: 1. Recently, current methods have aimed to address this issue by Oct 1, 2024 · With the wide success of CycleGAN in unpaired image-to-image translation, many unsupervised MR-to-CT image synthesis approaches are based on modified CycleGAN. used a CycleGAN model , which is an image-to-image translation that uses unpaired images to synthesize CT images from MR images. The attempts that make use of skull stripping seem to not be well ℓ MR= L InfoNCE| real,CT syn zCT(ref) syn,z MR(+) real,z MR(−) real (2) = −log exp zCT(ref) syn ·z MR(+) real exp zCT(ref) syn ·z MR(+) real P + N−1 j=1 exp zCT(ref) syn ·z MR(−) real. CT volumes of 61 patients were used from Head-and-neck cancer dataset [19, 20]. Yang et al. Bibliographic details on Unpaired MR-CT Brain Dataset for Unsupervised Image Translation. , № 136 MR to CT image synthesis plays an important role in medical image analysis, and its applications included, but not limited to PET-MR attenuation correction and MR only radiation therapy planning. Oct 11, 2024 · Unpaired image translation with feature-level constraints presents significant challenges, including unstable network training and low diversity in generated tasks. Download scientific diagram | Bidirectional MR-CT translation results of paired-unpaired uagGAN model with transfer learning (a) input, (b) ground truth, (c) apple2orange, (d) horse2zebra, and (e Oct 17, 2024 · The skull segmentation from CT scans can be seen as an already solved problem. 2022. Article. In CVPR, 2017. The generated images are overly simplistic, which fails to stimulate the network’s capacity for generating diverse and imaginative outputs. Jul 17, 2022 · To enable training on unpaired datasets, a cycle-consistent architecture is devised with coupled diffusive and non-diffusive modules that bilaterally translate between two modalities. However, in MR this task has a significantly greater complexity due to the presence of soft tissues rather than bones. 7. The MR-CT brain image volumes were acquired by the Diagnostic Radiology Department of the Jordan University Hospital (JUH). Mar 30, 2022 · The provided dataset represents unpaired brain magnetic resonance (MR) and computed tomography (CT) image data volumes of 20 patients. et al. also use the same network for MR to CT brain images generation. 2 CycleGAN supervision The two generators Aug 18, 2021 · In this paper, we propose a paired-unpaired Unsupervised Attention Guided Generative Adversarial Network (uagGAN) model to translate MR images to CT images and vice versa. M. Article "Unpaired MR-CT brain dataset for unsupervised image translation" Detailed information of the J-GLOBAL is an information service managed by the Japan Science and Technology Agency (hereinafter referred to as "JST"). KeywordsDeep learningComputed Oct 21, 2023 · Omar S. Understanding about Cycle GAN and its working: A Cycle GAN is designed for image-to-image translation, and it learns from unpaired training data. from publication: Paired-Unpaired Unsupervised Attention Guided GAN with Transfer Learning for Bidirectional Brain MR-CT Unpaired MR-CT brain dataset for unsupervised image translation Al-Kadi, OS; Almallahi, I; Abu-Srhan, A; Abushariah, AMM; Mahafza, W Al-Kadi, OS (通讯作者)，Univ Jordan, King Abdullah II Sch Informat Technol, Amman 11942, Jordan. Capturing the bone structures from MR images of the head, where the main visualization objective is the brain, is very demanding. Mohammad Abushariah, and Waleed Mahafza. (b) Attention maps for two patches in a smooth brain region (highlighted by a star) a structural nasal cavity (indicated by a sta Mar 8, 2019 · A generative adversarial network was trained to transform two-dimensional (2D) brain CT image slices into 2D brain MR image slices, combining the adversarial, dual cycle-consistent, and voxel-wise Mar 25, 2020 · In addition to unpaired image-to-image translation problems, such as CT-to–cone beam CT image translation and MR-to-CT image translation, CycleGANs allow models to rely on pure adversarial loss while simultaneously making inferences based on their input image conditions (37,38). In the paired Feb 23, 2023 · Sun et al performed abnormal-to-normal image translation by using unpaired I2I translation methods and used the feature heatmap from the generator network to increase the accuracy of lesion detection in brain MRI or liver CT (Sun et al 2020). Jul 30, 2023 · Medical image synthesis is a challenging task due to the scarcity of paired data. The proposed network is trained using three training objectives described in the next sections. 上面所说的运用了下文的方法： A. Our dataset consists of the brain CT and MR images of 20 patients scanned for radiotherapy treatment planning for brain tumors. Jul 1, 2023 · In previous works of medical image synthesis, CycleGAN outperformed other methods in specific image synthesis tasks with unpaired training data, such as MRI-to-CT image synthesis, CT-to-MRI synthesis, and multiple modality transformation [17], [18]. Biol. The dataset was acquired between the period of April 2016 and December 2019. In this paper, we propose a paired-unpaired Unsupervised Attention Guided Generative Adversarial Network (uagGAN) model to translate MR images to CT images and vice versa. Without the need for registrations and anatomical annotations for the new coming data, our SeRL can translate the MR images into high-quality synthesis CT ones that can be classified or segmented by the available CT-pre Subject area Medical Imaging Analysis Specific subject area Brain MR and CT scans Type of data MR and CT image volumes (along with lesion description in Table 1 and segmentation masks in Table 2) How data were acquired Data is collected using Siemens Verio scanner for the MR images, and Siemens Somatom scanner for the CT images. For example, Wolterink et al. Transfer Learning for Bidirectional Brain MR-CT Synthesis Unsupervised Image Translation, Paired and Unpaired Data, MR-to-CT Image Synthesis, Transfer Learning. MRI T1-weighted volumes of 7 patients were obtained from CPTAC Phase 3 dataset [3, 5]. 1) consists of two generators G: x → y ˆ and F: y → x ˆ for learning CT-to-MR and MR-to-CT mappings, respectively, where y ˆ = G (x) and x ˆ = F (y) represent synthesized MR and CT images, and two discriminators D Y and D X for distinguishing real MR and CT images from the Unpaired MR-CT brain dataset for unsupervised image translation: Data in Brief: deep learning: 2022 : Visit URL: Paired-unpaired Unsupervised Attention Guided GAN with transfer learning for bidirectional brain MR-CT synthesis: Computers in Biology and Medicine: deep learning: 2021 : Visit URL: Fog Computing Framework for Smart City Design Oct 17, 2024 · We address many issues associated with unsupervised skull segmentation including the unpaired nature of MR and CT datasets (contrastive learning), low resolution and poor quality (super-resolution Unpaired MR-CT brain dataset for unsupervised image translation. Sep 26, 2017 · For example, [22][23] [24] learn cross-modality image synthesis between MRI and CT images; [25,26] synthesizes T2w images from T1w images; [27] synthesizes 7T high-resolution, high-SNR images from Mar 16, 2024 · Ensuring anatomical consistency in unpaired I2I translation is challenging, particularly when the input and output domains exhibit substantial structural biases. CUT is responsible for the MR-to-CT translation in an unpaired manner, it takes unpaired samples and tries to generate a synthetic CT image for the corresponding MR image without a vision of a direct mapping. Oct 3, 2024 · (a) Synthetic MR-to-CT results of different ViT methods: ResViT [], UNETR [], and our proposed UNest, where our UNest most accurately preserves the structural carvity. 1016/j. Unpaired brain MR-to-CT synthesis using a structure-constrained CycleGAN Deep Learning in Medical Image Analysis and Multimodal Learning for Clinical Decision Support 2018 Cham Springer 174-182 image segmentation[37, 38]: with the brain CT image se-mantic label and without the brain MRI semantic label, the goal is to generate semantic label for the brain MRI im-age. Aug 20, 2021 · The Magnetic Resonance – Computed Tomography (MR-CT) Jordan University Hospital (JUH) dataset has been collected after receiving Institutional Review Board (IRB) approval of the hospital and consent forms have been obtained from all patients. Amazing works [37, 38] like this cross domain image segmentation task in the medical image application could be further improved if unpaired image translation can be Oct 1, 2023 · We shuffle the paired MR-CT volumes and only use the unpaired LR MRI and HR CT for training. Data in Brief 42 (2022), 108109. 108109 Corpus ID: 247889133; Unpaired MR-CT brain dataset for unsupervised image translation @article{AlKadi2022UnpairedMB, title={Unpaired MR-CT brain dataset for unsupervised image translation}, author={Omar Al-Kadi and Israa Almallahi and Alaa Abu-Srhan and Mohammad Abd-Alrahman Mahmoud Abushariah and Waleed S. Several methods have applied CycleGAN to leverage unpaired data, but they often generate inaccurate mappings that shift the anatomy. Pfister, O. A modified CycleGAN was used to translate images between 238 non-contrast computed tomography (NCCT) and 244 fluid-attenuated inversion recovery (FLAIR) MRI datasets, two of the Jul 1, 2023 · The purpose of our experiment is to evaluate the MRI-CT reconstruction performance of MRI-CT transformation methods on the misaligned MRI-CT dataset. The models trained on the paired MR/CT dataset with simulated deformations (Section 3. Shrivastava, T. This includes 179 two-dimensional (2D) axial MR and CT images. Each MR or CT 3D volume consists of 142 2D slices on the transverse plane. , 2021) corresponds to 20 MR volumes and 30 unpaired CT volumes. This problem is further Jan 1, 2023 · CHAOS: The Combined (CT-MR) Healthy Abdominal Organ Segmentation (CHAOS) dataset (Kavur et al. Therefore, there is a pressing need to develop a diffusion model that can accurately perform image-to-image translation from unpaired datasets (unsupervised learning). Jan 8, 2024 · Results are shown over original values on radiometric values for MRI and Hounsfield unit (HU) for CT scans. Except image synthesis in majority domain, some studies focused on other medical image translation. Following Al Chanti and Mateus (2021) , we used the ground-truth labels for four classes: left ventricle myocardium, left ventricle blood cavity, left atrium blood cavity, and ascending aorta. Unpaired MR-CT brain dataset for unsupervised image translation. To standardize image intensities for all patients, the histogram-matched method [49] was applied to MR images. Aug 19, 2022 · The CT and MR images had been already rigid registered by the challenge organizers and have same spacing, resolution and orientation. Recently, deep learning-based image synthesis techniques have achieved much success. However, the limitations of medical imaging acquisition and patient-specific factors can hinder medical images acquisition, resulting in Aug 11, 2020 · In terms of clinical applications, unpaired I2I translation has been used for automatic contouring of regions of interest in MRI, CT, X-ray and ultrasound images, fast MRI or low dose CT imaging Mar 27, 2019 · ones produced by the latest generators. A Unified Hyper-GAN Model for Unpaired Multi-contrast MR Image Translation [MICCAI, 2021] Anatomic and Molecular MR Image Synthesis Using Confidence Guided CNNs ; Self-Attentive Spatial Adaptive Normalization for Cross-Modality Domain Adaptation ; MRI cross-modality image-to-image translation [Nature, Scientific Reports, 2021] Aug 1, 2024 · With the development of deep learning algorithms, researchers have found a better way of describing the style information of an input image [6], [7], [8], which is derived from the statistics of the high-level feature maps and called adaptive instance normalization (AdaIN). A general problem with medical imaging is that the acquisition process is quite Jun 30, 2022 · Original MR and synthesised CT images along with visual evaluation scores for Patient 1. By using the IXI-brain-Dataset, I registered all data to a reference image with a registration script (Applied first Sobel and then affine registration) in organize_folder_structure. Image-to-image translation (I2I) is a deep learning scheme in the computer vision field that aims to transfer an image presented in one domain to another with a distinctive style or characteristic. Med. (b) Original MR and fused images obtained from MR and Sep 1, 2021 · In this paper, we propose a paired–unpaired Unsupervised Attention Guided Generative Adversarial Network (uagGAN) model to translate MR images to CT images and vice versa. have their early try on training CycleGAN to realize the generation of brain CT images from MR images, also they compare the unsupervised result with methods using paired CycleGAN. Aug 20, 2021 · All procedures followed are consistent with the ethics of handling patients’ data. The framework includes two pairs of generators G A, G B for MR to CT and backward translation, and two discriminators D A and D B to distinguish generated images from real inputs of corresponding domain. io Abstract. The dataset consists of brain CT and MR image volumes scanned for radiotherapy treatment planning for brain tumors. 2. 00mm T Siemens Verio 3T using a T2-weighted without contrast agent, 3 Fat sat pulses (FS), 2500-4000 TR, 20-30 TE, and 90/180 flip angle. The dataset contains T2-MR and CT images for patients aged between 26-71 years with mean-std equal to 47-14. 07. Extensive assessments are reported on the utility of SynDiff against competing GAN and diffusion models in multi-contrast MRI and MRI-CT translation. This includes 179 two-dimensional (2D) axial … Sep 1, 2021 · All procedures followed are consistent with the ethics of handling patients’ data. An example of this is the drastic visual difference between CT and MRI for leg and spinal regions as captured in standard exams (Figure 1), where typically CT images display two legs while MRI scans only show one, and CT images capture image translation directions. Wang, and R. Unsupervised Medical Image Translation. The MR cases are acquired using Siemens Verio scanner, while the CT images with a Siemens Somatom scanner. Subject area Medical Imaging Analysis Specific subject area Brain MR and CT scans Type of data MR and CT image volumes (along with lesion description in Table 1 and segmentation masks in Table 2) How data were acquired Data is collected using Siemens Mar 1, 2022 · DOI: 10. However, MR images give a more detailed picture of tissue structure and characteristics and are more likely to pick up abnormalities and lesions. Mahafza}, journal={Data in Brief}, year={2022}, volume The provided dataset represents unpaired brain magnetic resonance (MR) and computed tomography (CT) image data volumes of 20 patients. , 2020a , Jiang and Veeraraghavan, 2020 ). ; 01/08/2024 - Extensive experiments: We conduct experiments on two additional public datasets: an adult brain CERMEP-IDB-MRXFDG,and an abdominal datasets for downstream segmentation eval. Abu-Srhan, Paired-unpaired unsupervised attention guided GAN with transfer learning for bidirectional brain MR-CT synthesis, Comput. Oct 8, 2023 · Yang Heran, et al. Feb 13, 2021 · All procedures followed are consistent with the ethics of handling patients’ data. idtt kta pwhaa xsoym kbuhpef nqukv xqxuv tkhdhzl jgjwahk qfzfg bzl xzssal fubd inuhh sgihy