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相关论文: Fast and Robust T1 Mapping Based on a 3D Dual-Echo…

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Ultrahigh-field MRI, such as those operating at 7 Tesla, enhances diagnostic capabilities but also presents unique challenges, including the need for advanced RF coil designs to achieve an optimal signal-to-noise ratio and transmit…

医学物理 · 物理学 2025-02-11 Yunkun Zhao , Komlan Payne , Leslie Ying , Xiaoliang Zhang

Diffuse optics has the potential to offer a substantial advancement in fetal health monitoring via enabling continuous measurement of fetal blood oxygen saturation (fSpO$_2$). Aiming to enhance the sensing accuracy and to elucidate the…

图像与视频处理 · 电气工程与系统科学 2025-09-29 Weitai Qian , Rishad Raiyan Joarder , Randall Fowler , Begum Kasap , Mahya Saffarpour , Kourosh Vali , Tailai Lihe , Aijun Wang , Diana Farmer , Soheil Ghiasi

CT perfusion imaging (CTP) is used in the diagnostic workup of acute ischemic stroke (AIS). CTP may be performed within the angio suite using flat detector CT (FDCT) to help reduce patient management time. In order to significantly improve…

医学物理 · 物理学 2022-04-21 Vojtěch Kulvait , Philip Hoelter , Robert Frysch , Hana Haseljić , Arnd Doerfler , Georg Rose

T1 mapping is a quantitative magnetic resonance imaging (qMRI) technique that has emerged as a valuable tool in the diagnosis of diffuse myocardial diseases. However, prevailing approaches have relied heavily on breath-hold sequences to…

图像与视频处理 · 电气工程与系统科学 2023-08-23 Eyal Hanania , Ilya Volovik , Lilach Barkat , Israel Cohen , Moti Freiman

The advancement of Spatial Transcriptomics (ST) has facilitated the spatially-aware profiling of gene expressions based on histopathology images. Although ST data offers valuable insights into the micro-environment of tumors, its…

计算机视觉与模式识别 · 计算机科学 2024-01-25 Hongyi Wang , Xiuju Du , Jing Liu , Shuyi Ouyang , Yen-Wei Chen , Lanfen Lin

Purpose: To expand the capabilities of Zero Echo Time (ZTE) pulse sequences with a slice selection method suitable for the shortest-lived tissues in the body. Methods: We introduce two new sequences that integrate spin-locking pulses into…

医学物理 · 物理学 2022-01-19 J. Borreguero , F. Galve , J. M. Algarín , J. M. Benlloch , J. Alonso

In this work, we propose a free-breathing magnetic resonance fingerprinting method that can be used to obtain $B_1^+$-robust quantitative maps of the abdomen in a clinically acceptable time. A three-dimensional MR fingerprinting sequence…

Fluorescence microscopic imaging in centimeter-deep tissue has been highly sought-after for many years because much interesting in vivo micro-information, such as microcirculation, tumor angiogenesis, and metastasis, may deeply locate in…

We present space-based thermal infrared observations of the presumably Geminid-associated asteroids: (3200)Phaethon, 2005 UD and 1999 YC using WISE/NEOWISE. The images were taken at the four wavelength bands…

地球与行星天体物理 · 物理学 2022-10-26 Toshihiro Kasuga , Joseph R. Masiero

Novel methods for quantitative, transient-state multiparametric imaging are increasingly being demonstrated for assessment of disease and treatment efficacy. Here, we build on these by assessing the most common Non-Cartesian readout…

Purpose: Intensity-modulated proton therapy (IMPT) offers precise tumor coverage while sparing organs at risk (OARs) in head and neck (H&N) cancer. However, its sensitivity to anatomical changes requires frequent adaptation through online…

Neuroanatomical segmentation in magnetic resonance imaging (MRI) of the brain is a prerequisite for volume, thickness and shape measurements. This work introduces a new highly accurate and versatile method based on 3D convolutional neural…

定量方法 · 定量生物学 2019-02-07 Philip Novosad , Vladimir Fonov , D. Louis Collins

Detection of rare lesions in whole-body CT is fundamentally limited by extreme class imbalance and low target-to-volume ratios, producing precision collapse despite high AUROC. Synthetic augmentation with diffusion models offers promise,…

图像与视频处理 · 电气工程与系统科学 2026-03-02 Yifan Li , Mehrdad Salimitari , Taiyu Zhang , Guang Li , David Dreizin

The advancement of Spatial Transcriptomics (ST) has facilitated the spatially-aware profiling of gene expressions based on histopathology images. Although ST data offers valuable insights into the micro-environment of tumors, its…

计算机视觉与模式识别 · 计算机科学 2024-12-23 Hongyi Wang , Xiuju Du , Jing Liu , Shuyi Ouyang , Yen-Wei Chen , Lanfen Lin

The Herschel SPIRE Fourier transform spectrometer (FTS) performs spectral imaging in the 447-1546 GHz band. It can observe in three spatial sampling modes: sparse mode, with a single pointing on sky, or intermediate or full modes with 1 and…

Biocompatible nanoscale probes for sensitive detection of paramagnetic species and molecules associated with their (bio)chemical transformations would provide a desirable tool for a better understanding of cellular redox processes. Here, we…

We address the challenge of parameter-efficient fine-tuning (PEFT) for three-dimensional (3D) U-Net-based denoising diffusion probabilistic models (DDPMs) in magnetic resonance imaging (MRI) image generation. Despite its practical…

图像与视频处理 · 电气工程与系统科学 2025-07-25 Binghua Li , Ziqing Chang , Tong Liang , Chao Li , Toshihisa Tanaka , Shigeki Aoki , Qibin Zhao , Zhe Sun

Tau positron emission tomography (tau-PET) is an important in vivo biomarker of Alzheimer's disease, but its cost, limited availability, and acquisition burden restrict broad clinical use. This work proposes an interpretable multimodal…

计算机视觉与模式识别 · 计算机科学 2026-04-10 Agamdeep S. Chopra , Caitlin Neher , Tianyi Ren , Juampablo E. Heras Rivera , Hesam Jahanian , Mehmet Kurt

Motivation: Conventional echo planar imaging(EPI) based functional MRI(fMRI) uses the BOLD contrast to map activity changes in human brains. Introducing an efficient ZTE sequence for functional brain mapping can help address limitations of…

医学物理 · 物理学 2025-10-28 Ali Caglar Ozen , Shuai Liu , Serhat Ilbey , Michael Bock , Uzay Emir , Yen-Yu Ian Shih

Ultrasound is a widely accessible and cost-effective medical imaging tool commonly used for prenatal evaluation of the fetal brain. However, it has limitations, particularly in the third trimester, where the complexity of the fetal brain…

图像与视频处理 · 电气工程与系统科学 2025-04-04 Naomi Silverstein , Efrat Leibowitz , Ron Beloosesky , Haim Azhari