Ulrasound imaging

OBJECTIVE: The image reconstruction of ultrasound computed tomography is computationally expensive with conventional iterative methods. The fully learned direct deep learning reconstruction is promising to speed up the image reconstruction significantly. However, for direct reconstruction from measurement data, due to the lack of real labeled data, the neural network is usually trained on a simulation dataset and shows poor performance on real data because of the simulation-to-real gap...

BACKGROUND: Despite significant improvement in imaging quality and advanced scientific knowledge, it may still sometimes be difficult to distinguish different parathyroid lesions. The aims of this prospective study were to evaluate parathyroid lesions with ultrasound elastography and to determine whether strain index can help to differentiate parathyroid lesions. METHODS: Patients with biochemically confirmed hyperparathyroidism and localised parathyroid lesions in ultrasonography were included...

The cause of septic arthritis in 20% of cases is anaerobic bacteria, including infections caused by Finegoldia magna. The occurrence of this pathogen in the etiology of postoperative post-implantive septic joint inflammations is estimated at 5-12% of all anaerobic infections, and 20-40% of all gram-positive anaerobic coccus (GPAC). CASE REPORTS: The 65-year-old male patient was admitted due to symptoms of pain in the left hip after having undergone arthroplasty three years prior. It was found that the relative length of the left lower limb was shortened by 1...

OBJECTIVES: To determine the implications of different prostate sampling schemes on the diagnosis of clinically significant prostate cancer (csPCA, ISUP group 2-5) and clinically insignificant prostate cancer (ciPCA, ISUP group 1) in men with abnormal multiparametric magnetic resonance imaging (mpMRI) undergoing MRI-transrectal ulrasound fusion targeted biopsies. MATERIALS AND METHODS: This is a retrospective analysis of a cohort including all men who had a single lesion on mpMRI of the prostate performed between January 2016 and June 2017...

Between January 2012 to 2016, 20 patients with primary hyperparathyroidism underwent surgical exploration for presumed diagnosis of parathyroid adenoma. Nineteen patients underwent ultrasonography of neck and USG was found to be accurate in localizing the adenoma in 84.2%. Seventeen patients underwent sestamibi isotope scanning and imaging correlated with operative findings in 94.1%. Combined accuracy of ulrasound and sestamibi scan which was done in 17 patients was 95%. Seventeen patients underwent unilateral exploration and there was resolution of disease in 94...

Musculoskeletal ultrasound (US) is noninvasive, nonionisating and cost-effective imaging diagnostic technique. It is a useful imaging modality for the diagnosis of joint and soft tissue pathology and can be considered as an extension of physical examination. Elbow is easily accessed due to its superficial position. A high resolution, multi-frequency (10-15 MHz) linear transducer should be used. US investigation of the elbow includes scanning of the anterior, medial, lateral and posterior part of the joint. Common flexor and extensor origin at the humearal epicondyles, triceps tendon, distal biceps tendon and ulnar nerve should be analised...

The design, implementation, and testing of a computational observer method for objective evaluation of ultrasound images are presented. The method uses digitized ultrasound B-scan images of a test phantom (the contrast-detail phantom), and is able to calculate the detectability of a target (signal) from its background (background noise). A quantitative detectability index, based on the measured signal-to-noise ratio of the image data, that is measured for both the human and the computational observer on the same scale is generated...