Automatic segmentation of femoral tumors by nnU-net.

Background: Metastatic femoral tumors may lead to pathological fractures during daily activities. A CT-based finite element analysis of a patient's femurs was shown to assist orthopedic surgeons in making informed decisions about the risk of fracture and the need for a prophylactic fixation. Improving the accuracy of such analyses ruqires an automatic and accurate segmentation of the tumors and their automatic inclusion in the finite element model.

The walls of the femoral neck as an auxiliary tool for femoral stem positioning.

Background: Femoral anteversion is a major contributor to functionality of the hip joint and is implicated in many joint pathologies. Accurate determination of component version intraoperatively is a technically challenging process that relies on the visual estimation of the surgeon. The following study aimed to examine whether the walls of the femoral neck can be used as appropriate landmarks to ensure appropriate femoral prosthesis version intraoperatively.

High Prevalence of Right Ventricular/Left Ventricular Ratio ≥1 Among Patients Undergoing Computed Tomography Pulmonary Angiography.

Aim: Increased ratio between the right and left ventricular (RV/LV) diameters ≥1 is considered an important imaging marker for risk stratification among patients diagnosed with acute pulmonary embolism (PE). Our goal was to assess the prevalence of RV/LV≥1 among consecutive patients undergoing computed tomography pulmonary angiography, and to compare the prevalence of RV/LV≥1 between patients with and without PE.

Methods: Retrospective analysis of consecutive patients who underwent computed tomography pulmonary angiography due to clinical suspicion of PE between January 1, 2014 and December 31, 2014.

Ultrasound, magnetic resonance imaging and radiography of the finger joints in psoriatic arthritis patients.

Objectives: To report the discrepancies and agreements between US, MRI and radiography of the hand in PsA, and to compare the sensitivity and specificity of US and radiography to MRI as the gold standard imaging study in PsA.

Methods: All of the 100 prospectively recruited consecutive PsA patients underwent clinical assessment and concomitant radiographic, US and MRI studies of the MCP, PIP and DIP joints of one hand. Synovitis, flexor tenosynovitis, extensor paratenonitis, erosions and bone proliferations were identified and scored.

Left Atrial Volume as a Biomarker of Target Organ Damage in Cardionephrology: A Study in a Wide Range of Renal Function.

Background: Cardiac chamber size was previously studied by echocardiography, among patients with progressive kidney disease only. We aimed to explore the relations between all heart chamber volumes as assessed by CT pulmonary angiography and renal function, throughout all ranges.

Methods: Using a novel technology for automatic four-chamber volumetric analysis, we analyzed CT pulmonary angiography results for 748 consecutive patients (between January 1 and December 31, 2014) without pulmonary embolism, and correlated the chamber volumes, indexed to body surface area, with the estimated glomerular filtration rates (eGFRs).

Head circumference in untreated and IGF-I treated patients with Laron syndrome: comparison with untreated and hGH-treated children with isolated growth hormone deficiency.

Background: Head circumference (HC) is a simple and practical measure of brain size, development and longitudinal measurements of the HC in childhood are an index of brain growth.

Objective: To determine the effects of long IGF-I deficiency and treatment on HC in patients with Laron syndrome (LS).

Patients: 20 untreated adult LS patients, aged 48.