Publications by authors named "Corinne Barrau"
Purpose: This study proposes a practical method for evaluating 2D spatial resolution with scatter on a CZT planar detector gamma camera, which is simpler and faster than the NEMA method. It is used to characterize the influence of distance on spatial resolution FWHM on a CZT camera equipped with a WEHR collimator.
Methods: The practical method uses linear sources tilted with respect to the detector axes.
Objectives: To assess the impact on image quality and dose reduction of a new deep learning image reconstruction (DLIR) algorithm compared with a hybrid iterative reconstruction (IR) algorithm.
Methods: Data acquisitions were performed at seven dose levels (CTDI : 15/10/7.5/5/2.
Purpose: To assess the efficiency of combined use of ArcCheck detector (AC) and portal dosimetry (PDIP) for delivery quality assurance of head and neck and prostate volumetric-modulated arc therapy.
Materials And Methods: Measurement processes were studied with the Gamma index method according to three analysis protocols. The detection sensitivity to technical errors of each individual or combined measurement processes was studied by inserting collimator, dose and MLC opening error into five head and neck and five prostate initial treatment plans.
Article Synopsis
- The study compared standard bone SPECT/CT imaging using filtered backprojection (FBP) with an optimized low-dose technique using adaptive statistical iterative reconstruction (ASiR).
- Results showed no significant differences in image quality or performance between FBP and ASiR for both SPECT and CT images, as assessed by visual and quantitative measures.
- Importantly, the ASiR CT protocol achieved a 60% reduction in radiation dose compared to the FBP CT protocol without compromising image quality.