Imaging features of the brachial plexus in neurogenic thoracic outlet syndrome: A case report.

Neurogenic thoracic outlet syndrome (NTOS) is characterized by the compression of the brachial plexus in the thoracic outlet region, caused by various etiologies. We report a case with clinical symptoms and imaging findings from ultrasound and magnetic resonance imaging (MRI) of NTOS due to an elongated C7 transverse process and a fibrous band of the middle scalene muscle, which was confirmed in decompression surgery.

Evaluation of Factors Influenced on the Effectiveness of Percutaneous Nephrolithotomy.

Background: Generally, there are many methods for the treatment of urinary stones, of which percutaneous nephrolithotomy (PCNL) is a minimally invasive and highly effective method, and now become the first-line management for urinary stones, especially in the cases of complex stones and staghorne calculi. Accurate assessment of stone location, stone morphology, degree of hydronephrosis as well as urinary system abnormalities is extremely important in the percutaneous nephrolithotomy strategy.

Objective: The aim of this study was to evaluate the S.

Sporadic Creutzfeldt-Jakob disease: Brain MRI lesion features from 2 cases reports.

Sporadic Creutzfeldt-Jakob disease (sCJD) is an uncommon prion disease, also a fatal degenerative brain disorder. We aimed to illustrate 2 clinical cases, a 60-year-old female and a 57-year-old male, who came to the hospital due to rapidly progressive cognitive decline. A 1.

Characterization of high-grade prostate cancer at multiparametric MRI using a radiomic-based computer-aided diagnosis system as standalone and second reader.

Purpose: The purpose of this study was to develop and test across various scanners a zone-specific region-of-interest (ROI)-based computer-aided diagnosis system (CAD) aimed at characterizing, on MRI, International Society of Urological Pathology (ISUP) grade≥2 prostate cancers.

Materials And Methods: ROI-based quantitative models were selected in multi-vendor training (265 pre-prostatectomy MRIs) and pre-test (112 pre-biopsy MRIs) datasets. The best peripheral and transition zone models were combined and retrospectively assessed in internal (158 pre-biopsy MRIs) and external (104 pre-biopsy MRIs) test datasets.

Reproducibility of apparent diffusion coefficient measurement in normal prostate peripheral zone at 1.5T MRI.

Purpose: The purpose of this study was to quantify the influence of factors of variability on apparent diffusion coefficient (ADC) estimation in the normal prostate peripheral zone (PZ).

Materials And Methods: Fifty healthy volunteers underwent in 2017 (n = 17) or 2020 (n = 33) two-point (0, 800 s/mm²) prostate diffusion-weighted imaging in the morning on 1.5 T scanners A and B from different manufacturers.

Stiffness of benign and malignant prostate tissue measured by shear-wave elastography: a preliminary study.

Objectives: To measure benign and malignant prostate tissue stiffness using shear-wave elastography (SWE).

Methods: Thirty consecutive patients underwent transrectal SWE in the axial and sagittal planes before prostatectomy. After reviewing prostatectomy specimens, two radiologists measured stiffness in regions corresponding to cancers, lateral and median benign peripheral zone (PZ) and benign transition zone (TZ).

Quantitative Analysis of Prostate Multiparametric MR Images for Detection of Aggressive Prostate Cancer in the Peripheral Zone: A Multiple Imager Study.

Purpose To assess the intermanufacturer variability of quantitative models in discriminating cancers with a Gleason score of at least 7 among peripheral zone (PZ) lesions seen at 3-T multiparametric magnetic resonance (MR) imaging. Materials and Methods An institutional review board-approved prospective database of 257 patients who gave written consent and underwent T2-weighted, diffusion-weighted, and dynamic contrast material-enhanced imaging before prostatectomy was retrospectively reviewed. It contained outlined lesions found to be suspicious for malignancy by two independent radiologists and classified as malignant or benign after correlation with prostatectomy whole-mount specimens.

How accurate is multiparametric MR imaging in evaluation of prostate cancer volume?

Purpose: To assess the factors influencing multiparametric (MP) magnetic resonance (MR) imaging accuracy in estimating prostate cancer histologic volume (Vh).

Materials And Methods: A prospective database of 202 patients who underwent MP MR imaging before radical prostatectomy was retrospectively used. Institutional review board approval and informed consent were obtained.