.png){kind=icon}
返回
Passive Cavitation Imaging Artifact Reduction Using Data-Adaptive Spatial Filtering
.png){kind=icon}
PRE
AI
DOI：10.1109/TUFFC.2023.3264832.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Passive cavitation imaging (PCI) with a clinical diagnostic array results in poor axial localization of bubble activity due to the size of the point spread function (PSF). The objective of this study was to determine if data-adaptive spatial filtering improved PCI beamforming performance relative to standard frequency-domain delay, sum, and integrate (DSI) or robust Capon beamforming (RCB). The overall goal was to improve source localization and image quality without sacrificing computation time. Spatial filtering was achieved by applying a pixel-based mask to DSI- or RCB-beamformed images. The masks were derived from DSI, RCB, or phase or amplitude coherence factors (ACFs) using both receiver operating characteristic (ROC) and precision-recall (PR) curve analyses. Spatially filtered passive cavitation images were formed from cavitation emissions based on two simulated sources densities and four source distribution patterns mimicking cavitation emissions induced by an EkoSonic catheter. Beamforming performance was assessed via binary classifier metrics. The difference in sensitivity, specificity, and area under the ROC curve (AUROC) differed by no more than 11% across all algorithms for both source densities and all source patterns. The computational time required for each of the three spatially filtered DSIs was two orders of magnitude less than that required for time-domain RCB and thus this data-adaptive spatial filtering strategy for PCI beamforming is preferable given the similar binary classification performance.
Keyword:
Array signal processing
Imaging
Coherence
Frequency-domain analysis
Filtering
Catheters
Acoustics
Beamforming
cavitation
coherence factor imaging
passive acoustic mapping
passive cavitation imaging (PCI)
期刊
IF:
3.7
论文数:
6.7K
被引数:
1.4W
机构
引用论文
THE MEANING AND USE OF THE AREA UNDER A RECEIVER OPERATING CHARACTERISTIC (ROC) CURVE受试者工作特征 (ROC) 曲线下面积的含义和用途.png)
RADIOLOGY
RADIOLOGYIF15.2
PREAI
分享收藏Dual-Array Passive Acoustic Mapping for Cavitation Imaging With Enhanced 2-D Resolution具有增强的二维分辨率的双阵列被动声学映射，用于空化成像
OAAI
OAAI分享收藏Experimental demonstration of passive acoustic imaging in the human skull cavity using CT-based aberration corrections (vol 42, pg 4385, 2015)MEDICAL PHYSICSOAAI
MEDICAL PHYSICSIF3.2
OAAI分享收藏Delay multiply and sum beamforming method applied to enhance linear-array passive acoustic mapping of ultrasound cavitationMEDICAL PHYSICS
MEDICAL PHYSICSIF3.2
PREAI
分享收藏Ultrafast three-dimensional microbubble imaging in vivo predicts tissue damage volume distributions during nonthermal brain ablation体内超快三维微泡成像预测非热脑消融过程中的组织损伤体积分布THERANOSTICSOAAI
THERANOSTICSIF13.3
OAAI分享收藏
查看更多内容