Publications by authors named "J Poujol"
Purpose: To evaluate the effectiveness of ultra-fast two-dimensional (2D) T2*-weighted multi-shot echo-planar imaging (MS-EPI) for the detection of cerebral microbleeds (CMB) in cognitive disorders.
Methods: Sixty-eight patients referred for neuroimaging to investigate cognitive disorders underwent 3 T MR imaging, with both 2D T2*-weighted MS-EPI and susceptibility-weighted angiography (SWAN). Microbleeds were separately assessed on 2D T2*-weighted MS-EPI and SWAN by 2 raters.
Article Synopsis
- MRI is effective at identifying bone marrow involvement in multiple myeloma but struggles with detecting bone lesions, prompting a study to test new MRI techniques (ZTE and BB) against whole-body CT as a reference.
- The study included 47 patients diagnosed with multiple myeloma or at high risk, assessing the performance of ZTE and BB MRI sequences alongside PET/CT scans for detecting osteolytic lesions.
- Results showed that experienced radiologists achieved high accuracy (98%) with both MRI techniques, but there were noticeable discrepancies in detection rates across different regions, particularly with an increased false-negative rate in the spine when using ZTE.
Cine cardiac MRI sequences require repeated breath-holds, which can be difficult for patients with ischemic heart disease (IHD). The purpose of the study was to compare a free-breathing accelerated cine sequence using deep learning (DL) reconstruction and a standard breath-hold cine sequence in terms of image quality and left ventricular (LV) measurements in patients with IHD undergoing cardiac MRI. This prospective study included patients undergoing 1.
View Article and Find Full Text PDFPurpose: Amide proton transfer-weighted (APTw) MRI at 3T provides a unique contrast for brain tumor imaging. However, APTw imaging suffers from hyperintensities in liquid compartments such as cystic or necrotic structures and provides a distorted APTw signal intensity. Recently, it has been shown that heuristically motivated fluid suppression can remove such artifacts and significantly improve the readability of APTw imaging.
View Article and Find Full Text PDFPurpose: Risk stratification of patients with type 2 diabetes mellitus (T2D) remains suboptimal. We hypothesized that myocardial perfusion entropy (MPE) quantified from SPECT myocardial perfusion images may provide incremental prognostic value in T2D patients independently from myocardial ischemia.
Methods: T2D patients with very high and high cardiovascular risk were prospectively included (n = 166, 65 ± 12 years).