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Abdominal aortic aneurysms (AAA) pose a significant clinical risk due to their potential for rupture, which is often asymptomatic but can be fatal. Although maximum diameter is commonly used for risk assessment, diameter alone is…

图像与视频处理 · 电气工程与系统科学 2025-08-28 Utsav Ratna Tuladhar , Richard Simon , Doran Mix , Michael Richards

Two-dimensional (2D) freehand ultrasonography is one of the most commonly used medical imaging modalities, particularly in obstetrics and gynaecology. However, it only captures 2D cross-sectional views of inherently 3D anatomies, losing…

图像与视频处理 · 电气工程与系统科学 2024-04-17 Mark C. Eid , Pak-Hei Yeung , Madeleine K. Wyburd , João F. Henriques , Ana I. L. Namburete

Four-dimensional (4D) Flow MRI can noninvasively measure cerebrovascular hemodynamics but remains underused clinically because current workflows rely on manual vessel segmentation and yield velocity fields sensitive to noise, artifacts, and…

图像与视频处理 · 电气工程与系统科学 2026-01-21 Abhishek Singh , Vitaliy L. Rayz , Pavlos P. Vlachos

Cerebrovascular disease is one of the major diseases facing the world today. Automatic segmentation of intracranial artery (IA) in digital subtraction angiography (DSA) sequences is an important step in the diagnosis of vascular related…

图像与视频处理 · 电气工程与系统科学 2023-09-08 Lemeng Wang , Wentao Liu , Weijin Xu , Haoyuan Li , Huihua Yang , Feng Gao

This study aims to mitigate these biases and enhance QA analysis by applying a path-length correction (PLC) correction, followed by singular value decomposition (SVD)-based deconvolution, to angiograms obtained through both in-silico and…

Automated segmentation in medical image analysis is a challenging task that requires a large amount of manually labeled data. However, most existing learning-based approaches usually suffer from limited manually annotated medical data,…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Chenyu You , Yuan Zhou , Ruihan Zhao , Lawrence Staib , James S. Duncan

Three-dimensional ultrasound enables real-time volumetric visualization of anatomical structures. Unlike traditional 2D ultrasound, 3D imaging reduces reliance on precise probe orientation, potentially making ultrasound more accessible to…

图像与视频处理 · 电气工程与系统科学 2026-05-05 Tristan S. W. Stevens , Oisín Nolan , Oudom Somphone , Jean-Luc Robert , Ruud J. G. van Sloun

Spatial convolutions are widely used in numerous deep video models. It fundamentally assumes spatio-temporal invariance, i.e., using shared weights for every location in different frames. This work presents Temporally-Adaptive Convolutions…

计算机视觉与模式识别 · 计算机科学 2022-03-18 Ziyuan Huang , Shiwei Zhang , Liang Pan , Zhiwu Qing , Mingqian Tang , Ziwei Liu , Marcelo H. Ang

Recent advances in deep learning for tomographic reconstructions have shown great potential to create accurate and high quality images with a considerable speed-up. In this work we present a deep neural network that is specifically designed…

计算机视觉与模式识别 · 计算机科学 2020-09-07 Andreas Hauptmann , Felix Lucka , Marta Betcke , Nam Huynh , Jonas Adler , Ben Cox , Paul Beard , Sebastien Ourselin , Simon Arridge

Subarachnoid hemorrhage (SAH), typically due to intracranial aneurysms, demands precise imaging for effective treatment. Digital Subtraction Angiography (DSA), despite being the gold standard, broadly visualizes cerebral blood flow,…

X-ray coronary angiography (XCA) is used to assess coronary artery disease and provides valuable information on lesion morphology and severity. However, XCA images are 2D and therefore limit visualisation of the vessel. 3D reconstruction of…

图像与视频处理 · 电气工程与系统科学 2023-03-01 Kit Mills Bransby , Vincenzo Tufaro , Murat Cap , Greg Slabaugh , Christos Bourantas , Qianni Zhang

Spatial convolutions are extensively used in numerous deep video models. It fundamentally assumes spatio-temporal invariance, i.e., using shared weights for every location in different frames. This work presents Temporally-Adaptive…

计算机视觉与模式识别 · 计算机科学 2023-08-14 Ziyuan Huang , Shiwei Zhang , Liang Pan , Zhiwu Qing , Yingya Zhang , Ziwei Liu , Marcelo H. Ang

We present a data-driven generative framework for synthesizing blood vessel 3D geometry. This is a challenging task due to the complexity of vascular systems, which are highly variating in shape, size, and structure. Existing model-based…

计算机视觉与模式识别 · 计算机科学 2025-05-20 Paula Feldman , Miguel Fainstein , Viviana Siless , Claudio Delrieux , Emmanuel Iarussi

Photoacoustic imaging (PAI) is a non-invasive imaging modality that detects the ultrasound signal generated from tissue with light excitation. Photoacoustic computed tomography (PACT) uses unfocused large-area light to illuminate the target…

图像与视频处理 · 电气工程与系统科学 2022-04-13 Hengrong Lan , Jiali Gong , Fei Gao

Accurate geometric quantification of the human heart is a key step in the diagnosis of numerous cardiac diseases, and in the management of cardiac patients. Ultrasound imaging is the primary modality for cardiac imaging, however acquisition…

图像与视频处理 · 电气工程与系统科学 2022-07-28 David Stojanovski , Uxio Hermida , Marica Muffoletto , Pablo Lamata , Arian Beqiri , Alberto Gomez

Protoacoustic imaging showed great promise in providing real-time 3D dose verification of proton therapy. However, the limited acquisition angle in protoacoustic imaging induces severe artifacts, which significantly impairs its accuracy for…

医学物理 · 物理学 2023-08-14 Yankun Lang , Zhuoran Jiang , Leshan Sun , Liangzhong Xiang , Lei Ren

Attenuation correction (AC) is necessary for accurate activity quantification in positron emission tomography (PET). Conventional reconstruction methods typically rely on attenuation maps derived from a co-registered computed tomography…

We present a method for 3D/2D registration of Digital Subtraction Angiography (DSA) images to provide valuable insight into brain hemodynamics and angioarchitecture. Our approach formulates the registration as a pose estimation problem,…

计算机视觉与模式识别 · 计算机科学 2025-01-28 Taewoong Lee , Sarah Frisken , Nazim Haouchine

Audio-Visual Segmentation (AVS) aims to localize sound-producing objects at the pixel level by jointly leveraging auditory and visual information. However, existing methods often suffer from multi-source entanglement and audio-visual…

计算机视觉与模式识别 · 计算机科学 2025-12-24 Jingqi Tian , Yiheng Du , Haoji Zhang , Yuji Wang , Isaac Ning Lee , Xulong Bai , Tianrui Zhu , Jingxuan Niu , Yansong Tang

Quantitative cancer image analysis relies on the accurate delineation of tumours, a very specialised and time-consuming task. For this reason, methods for automated segmentation of tumours in medical imaging have been extensively developed…

图像与视频处理 · 电气工程与系统科学 2022-12-07 Saúl Alonso-Monsalve , Leigh H. Whitehead , Adam Aurisano , Lorena Escudero Sanchez