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Investigating the Accumulation of Submicron Phase-Change Droplets in Tumors.

Author(s): Helfield BL, Yoo K, Liu J, Williams R, Sheeran PS, Goertz DE, Burns PN

Ultrasound Med Biol. 2020 Jul 27;: Authors: Helfield BL, Yoo K, Liu J, Williams R, Sheeran PS, Goertz DE, Burns PN

Article GUID: 32732167
Transendothelial Perforations and the Sphere of Influence of Single-Site Sonoporation.

Author(s): Helfield B, Chen X, Watkins SC, Villanueva FS

Ultrasound Med Biol. 2020 May 10;: Authors: Helfield B, Chen X, Watkins SC, Villanueva FS

Article GUID: 32402675
High-Dynamic-Range Ultrasound: Application for Imaging Tendon Pathology.

Author(s): Xiao Y, Boily M, Hashemi HS, Rivaz H

Ultrasound Med Biol. 2018 07;44(7):1525-1532 Authors: Xiao Y, Boily M, Hashemi HS, Rivaz H

Article GUID: 29628224
Title:High-Dynamic-Range Ultrasound: Application for Imaging Tendon Pathology.
Authors:Xiao Y,  Boily M,  Hashemi HS,  Rivaz H
Link:https://www.ncbi.nlm.nih.gov/pubmed/29628224?dopt=Abstract
DOI:10.1016/j.ultrasmedbio.2018.03.004
Category:Ultrasound Med Biol
PMID:29628224
Dept Affiliation: PERFORM
1 PERFORM Centre, Concordia University, Montreal, Quebec, Canada; Department of Electrical and Computer Engineering, Concordia University, Montreal, Quebec, Canada. Electronic address: yiming.xiao@concordia.ca.
2 Department of Diagnostic Radiology, McGill University, Montreal, Quebec, Canada.
3 Department of Electrical and Computer Engineering, Concordia University, Montreal, Quebec, Canada.
4 PERFORM Centre, Concordia University, Montreal, Quebec, Canada; Department of Electrical and Computer Engineering, Concordia University, Montreal, Quebec, Canada.

Description:

High-Dynamic-Range Ultrasound: Application for Imaging Tendon Pathology.

Ultrasound Med Biol. 2018 07;44(7):1525-1532

Authors: Xiao Y, Boily M, Hashemi HS, Rivaz H

Abstract

Raw ultrasound (US) signal has a very high dynamic range (HDR) and, as such, is compressed in B-mode US using a logarithmic function to fit within the dynamic range of digital displays. However, in some cases, hyper-echogenic tissue can be overexposed at high gain levels with the loss of hypo-echogenic detail at low gain levels. This can cause the loss of anatomic detail and tissue texture and frequent and inconvenient gain adjustments, potentially affecting the diagnosis. To mitigate these drawbacks, we employed tone mapping operators (TMOs) in HDR photography to create HDR US. We compared HDR US produced from three different popular TMOs (Reinhard, Drago and Durand) against conventional US using a simulated US phantom and in vivo images of patellar tendon pathologies. Based on visual inspection and assessments of structural fidelity, image entropy and contrast-to-noise ratio metrics, Reinhard and Drago TMOs substantially improved image detail and texture.

PMID: 29628224 [PubMed - indexed for MEDLINE]