Variability and accuracy of measurements of prostate brachytherapy seed positionin vitrousing three-dimensional ultrasound: An intra- and inter-observer study

2000 ◽  
Vol 27 (12) ◽  
pp. 2788-2795 ◽  
Author(s):  
C. C. Blake ◽  
T. L. Elliot ◽  
P. J. Slomka ◽  
D. B. Downey ◽  
A. Fenster
Keyword(s):  
Three Dimensional ◽  
Prostate Brachytherapy ◽  
Observer Study ◽  
Accuracy Of Measurements

Impact of image reconstruction parameters when using 3D DSA reconstructions to measure intracranial aneurysms

2017 ◽  
Vol 10 (3) ◽  
pp. 285-289 ◽  
Author(s):  
Katrina L Ruedinger ◽  
David R Rutkowski ◽  
Sebastian Schafer ◽  
Alejandro Roldán-Alzate ◽  
Erick L Oberstar ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Hounsfield Unit ◽  
Ground Truth ◽  
Individual Case ◽  
Dome Height ◽  
Patient Specific ◽  
Analysis Tool ◽  
Accuracy Of Measurements ◽  
Image Characteristic

Background and purposeSafe and effective use of newly developed devices for aneurysm treatment requires the ability to make accurate measurements in the angiographic suite. Our purpose was to determine the parameters that optimize the geometric accuracy of three-dimensional (3D) vascular reconstructions.MethodsAn in vitro flow model consisting of a peristaltic pump, plastic tubing, and 3D printed patient-specific aneurysm models was used to simulate blood flow in an intracranial aneurysm. Flow rates were adjusted to match values reported in the literature for the internal carotid artery. 3D digital subtraction angiography acquisitions were obtained using a commercially available biplane angiographic system. Reconstructions were done using Edge Enhancement (EE) or Hounsfield Unit (HU) kernels and a Normal or Smooth image characteristic. Reconstructed images were analyzed using the vendor's aneurysm analysis tool. Ground truth measurements were derived from metrological scans of the models with a microCT. Aneurysm volume, surface area, dome height, minimum and maximum ostium diameter were determined for the five models.ResultsIn all cases, measurements made with the EE kernel most closely matched ground truth values. Differences in values derived from reconstructions displayed with Smooth or Normal image characteristics were small and had only little impact on the geometric parameters considered.ConclusionsReconstruction parameters impact the accuracy of measurements made using the aneurysm analysis tool of a commercially available angiographic system. Absolute differences between measurements made using reconstruction parameters determined as optimal in this study were, overall, very small. The significance of these differences, if any, will depend on the details of each individual case.

Evaluation of bi-objective treatment planning for high-dose-rate prostate brachytherapy—A retrospective observer study

Brachytherapy ◽  
2019 ◽  
Vol 18 (3) ◽  
pp. 396-403 ◽  
Author(s):  
Stefanus C. Maree ◽  
Ngoc Hoang Luong ◽  
Ernst S. Kooreman ◽  
Niek van Wieringen ◽  
Arjan Bel ◽  
...  
Keyword(s):  
Dose Rate ◽  
Treatment Planning ◽  
High Dose Rate ◽  
High Dose ◽  
Prostate Brachytherapy ◽  
Observer Study

Three-dimensional seed reconstruction for prostate brachytherapy using Hough trajectories

2004 ◽  
Vol 49 (4) ◽  
pp. 557-569 ◽  
Author(s):  
Steve T Lam ◽  
Paul S Cho ◽  
Robert J MarksII ◽  
Sreeram Narayanan
Keyword(s):  
Three Dimensional ◽  
Prostate Brachytherapy ◽  
Seed Reconstruction

Three-Dimensional Conformal Dose Planning for Prostate Brachytherapy

2017 ◽  
Vol 24 (1) ◽  
pp. 73-81
Author(s):  
Shihui Zhang ◽  
Shan Jiang ◽  
Zhiyong Yang ◽  
Zhi Li
Keyword(s):  
Three Dimensional ◽  
Prostate Brachytherapy ◽  
Dose Planning
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