scholarly journals Real-time 3D target tracking in MRI guided focused ultrasound ablations in moving tissues

2010 ◽  
Vol 64 (6) ◽  
pp. 1704-1712 ◽  
Author(s):  
Mario Ries ◽  
Baudouin Denis de Senneville ◽  
Sébastien Roujol ◽  
Yasmina Berber ◽  
Bruno Quesson ◽  
...  
Keyword(s):  
Target Tracking ◽  
Real Time ◽  
Focused Ultrasound ◽  
Mri Guided

Real-Time MRI-Guided Focused Ultrasound for Focal Therapy of Locally Confined Low-Risk Prostate Cancer: Feasibility and Preliminary Outcomes

2015 ◽  
Vol 205 (2) ◽  
pp. W177-W184 ◽  
Author(s):  
Sangeet Ghai ◽  
Alyssa S. Louis ◽  
Meghan Van Vliet ◽  
Uri Lindner ◽  
Masoom A. Haider ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Real Time ◽  
Focused Ultrasound ◽  
Focal Therapy ◽  
Low Risk ◽  
Risk Prostate Cancer ◽  
Low Risk Prostate Cancer ◽  
Mri Guided

scholarly journals Target tracking accuracy and latency with different 4D ultrasound systems – a robotic phantom study

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Svenja Ipsen ◽  
Sven Böttger ◽  
Holger Schwegmann ◽  
Floris Ernst
Keyword(s):  
Target Tracking ◽  
Real Time ◽  
Template Matching ◽  
Image Data ◽  
Distinct Advantage ◽  
Reference Trajectory ◽  
Data Streaming ◽  
Tracking Accuracy ◽  
Time Data ◽  
4D Ultrasound

AbstractUltrasound (US) imaging, in contrast to other image guidance techniques, offers the distinct advantage of providing volumetric image data in real-time (4D) without using ionizing radiation. The goal of this study was to perform the first quantitative comparison of three different 4D US systems with fast matrix array probes and real-time data streaming regarding their target tracking accuracy and system latency. Sinusoidal motion of varying amplitudes and frequencies was used to simulate breathing motion with a robotic arm and a static US phantom. US volumes and robot positions were acquired online and stored for retrospective analysis. A template matching approach was used for target localization in the US data. Target motion measured in US was compared to the reference trajectory performed by the robot to determine localization accuracy and system latency. Using the robotic setup, all investigated 4D US systems could detect a moving target with sub-millimeter accuracy. However, especially high system latency increased tracking errors substantially and should be compensated with prediction algorithms for respiratory motion compensation.

scholarly journals AAPM Task Group 241: A Medical Physicist’s Guide to MRI‐guided Focused Ultrasound Body Systems

2021 ◽  
Author(s):  
Allison Payne ◽  
Rajiv Chopra ◽  
Nicholas Ellens ◽  
Lili Chen ◽  
Pejman Ghanouni ◽  
...  
Keyword(s):  
Focused Ultrasound ◽  
Task Group ◽  
Mri Guided

scholarly journals First Demonstration of Combined kV/MV Image-Guided Real-Time Dynamic Multileaf-Collimator Target Tracking

2009 ◽  
Vol 74 (3) ◽  
pp. 859-867 ◽  
Author(s):  
Byungchul Cho ◽  
Per R. Poulsen ◽  
Alex Sloutsky ◽  
Amit Sawant ◽  
Paul J. Keall
Keyword(s):  
Target Tracking ◽  
Real Time ◽  
Multileaf Collimator ◽  
Time Dynamic ◽  
Image Guided

scholarly journals OC-0089: Phase II trial of dose escalation to dominant intraprostatic lesion with TRUS-MRI guided real time HDR brachytherapy

2015 ◽  
Vol 115 ◽  
pp. S45
Author(s):  
A. Gomez-Iturriaga ◽  
F. Casquero ◽  
A. Urresola ◽  
B. Canteli ◽  
A. Ezquerro ◽  
...  
Keyword(s):  
Real Time ◽  
Phase Ii ◽  
Dose Escalation ◽  
Phase Ii Trial ◽  
Hdr Brachytherapy ◽  
Mri Guided

scholarly journals Interventional MRI-guided catheter placement and real time drug delivery to the central nervous system

2016 ◽  
Vol 16 (6) ◽  
pp. 635-639 ◽  
Author(s):  
Seunggu J. Han ◽  
Krystof Bankiewicz ◽  
Nicholas A. Butowski ◽  
Paul S. Larson ◽  
Manish K. Aghi
Keyword(s):  
Drug Delivery ◽  
Central Nervous System ◽  
Nervous System ◽  
Real Time ◽  
Interventional Mri ◽  
Catheter Placement ◽  
The Central Nervous System ◽  
Mri Guided
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