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Most ultrasound imaging techniques necessitate the fundamental step of converting temporal signals received from transducer elements into a spatial echogenecity map. This beamforming (BF) step requires the knowledge of speed-of-sound (SoS)…

医学物理 · 物理学 2022-11-22 Can Deniz Bezek , Orcun Goksel

Prenatal screening with ultrasound can lower neonatal mortality significantly for selected cardiac abnormalities. However, the need for human expertise, coupled with the high volume of screening cases, limits the practically achievable…

图像与视频处理 · 电气工程与系统科学 2020-08-19 Jeremy Tan , Anselm Au , Qingjie Meng , Sandy FinesilverSmith , John Simpson , Daniel Rueckert , Reza Razavi , Thomas Day , David Lloyd , Bernhard Kainz

The quantification of liver fat as a diagnostic assessment of steatosis remains an important priority for noninvasive imaging systems. We derive a framework in which the unknown fat volume percentage can be estimated from a pair of…

医学物理 · 物理学 2021-09-10 Juvenal Ormachea , Kevin J. Parker

Deep learning models with large learning capacities often overfit to medical imaging datasets. This is because training sets are often relatively small due to the significant time and financial costs incurred in medical data acquisition and…

计算机视觉与模式识别 · 计算机科学 2021-03-16 Lok Hin Lee , Yuan Gao , J. Alison Noble

Ultrasound imaging is widely used for real-time, noninvasive diagnosis, but speckle and related artifacts reduce image quality and can hinder interpretation. We present a diffusion-based ultrasound despeckling method built on the Image…

计算机视觉与模式识别 · 计算机科学 2026-02-27 Shuoqi Chen , Yujia Wu , Geoffrey P. Luke

Ultrasound is well-established as an imaging modality for diagnostic and interventional purposes. However, the image quality varies with operator skills as acquiring and interpreting ultrasound images requires extensive training due to the…

Mammography stands as the main screening method for detecting breast cancer early, enhancing treatment success rates. The segmentation of landmark structures in mammography images can aid the medical assessment in the evaluation of cancer…

图像与视频处理 · 电气工程与系统科学 2025-03-31 Jan Hurtado , Joao P. Maia , Cesar A. Sierra-Franco , Alberto Raposo

In the field of medical imaging, breast ultrasound has emerged as a crucial diagnostic tool for early detection of breast cancer. However, the accuracy of diagnosing the location of the affected area and the extent of the disease depends on…

图像与视频处理 · 电气工程与系统科学 2025-07-18 Tran Cao Minh , Nguyen Kim Quoc , Phan Cong Vinh , Dang Nhu Phu , Vuong Xuan Chi , Ha Minh Tan

We describe a novel, two-stage computer assistance system for lung anomaly detection using ultrasound imaging in the intensive care setting to improve operator performance and patient stratification during coronavirus pandemics. The…

Transcranial ultrasound (TUS) has emerged as a promising tool in clinical and research settings due to its potential to modulate neuronal activity, open the blood-brain barrier, facilitate targeted drug delivery via nanoparticles, and…

医学物理 · 物理学 2024-10-29 Kasra Naftchi-Ardebili , Karanpartap Singh , Gerald R. Popelka , Kim Butts Pauly

Blood flow is sensitive to disease and provides insight into cardiac function, making flow field analysis valuable for diagnosis. However, while safer than radiation-based imaging and more suitable for patients with medical implants,…

机器学习 · 计算机科学 2025-11-04 Viraj Patel , Lisa Kreusser , Katharine Fraser

The BI_RADS score is a probabilistic reporting tool used by radiologists to express the level of uncertainty in predicting breast cancer based on some morphological features in mammography images. There is a significant variability in…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Mohaddeseh Chegini , Ali Mahloojifar

As medical ultrasound is becoming a prevailing examination approach nowadays, robotic ultrasound systems can facilitate the scanning process and prevent professional sonographers from repetitive and tedious work. Despite the recent…

机器人学 · 计算机科学 2023-07-26 Xutian Deng , Junnan Jiang , Wen Cheng , Miao Li

This paper considers the problem of estimating the delays of a weighted superposition of pulses, called stream of pulses, in a noisy environment. We show that the delays can be estimated using a tractable convex optimization problem with a…

信息论 · 计算机科学 2016-06-29 Tamir Bendory , Avinoam Bar-Zion , Dan Adam , Shai Dekel , Arie Feuer

Conventional imaging of diagnostic ultrasound is widely used. Although it makes the differences in the soft tissues echogenicities' apparent and clear, it fails in describing and estimating the soft tissue mechanical properties. It cannot…

医学物理 · 物理学 2022-10-07 Hassan M. Ahmed

We externally validated three deep learning models (DenseNet121, ViT-B/32, and ResNet50) for predicting mammographic breast density from breast ultrasound exams on an independent cohort. The external validation set comprised 2,000…

图像与视频处理 · 电气工程与系统科学 2026-05-07 Yuxuan Chen , Arianna Bunnell , Yanqi Xu , Haoyan Yang , Thomas K. Wolfgruber , John A. Shepherd , Yiqiu Shen

Ultrasound is a vital diagnostic technique in health screening, with the advantages of non-invasive, cost-effective, and radiation free, and therefore is widely applied in the diagnosis of nodules. However, it relies heavily on the…

图像与视频处理 · 电气工程与系统科学 2025-11-25 Siyuan Jiang , Yan Ding , Yuling Wang , Lei Xu , Wenli Dai , Wanru Chang , Jianfeng Zhang , Jie Yu , Jianqiao Zhou , Chunquan Zhang , Ping Liang , Dexing Kong

This paper presents a deep learning system applied for detecting anomalies from respiratory sound recordings. Our system initially performs audio feature extraction using Continuous Wavelet transformation. This transformation converts the…

声音 · 计算机科学 2023-06-28 Dat Ngo , Lam Pham , Huy Phan , Minh Tran , Delaram Jarchi

Many voice disorders induce subharmonic phonation, but voice signal analysis is currently lacking a technique to detect the presence of subharmonics reliably. Distinguishing subharmonic phonation from normal phonation is a challenging task…

音频与语音处理 · 电气工程与系统科学 2025-01-17 Takeshi Ikuma , Melda Kunduk , Brad Story , Andrew J. McWhorter

Ultrasound and radar signals are highly beneficial for medical imaging as they are non-invasive and non-ionizing. Traditional imaging techniques have limitations in terms of contrast and physical interpretation. Quantitative medical imaging…

计算机视觉与模式识别 · 计算机科学 2024-02-19 Tom Sharon , Yonina C. Eldar
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