Shear wave elastography of the ulnar collateral ligament in division IA pitchers across a competitive collegiate season.

Background: The ulnar collateral ligament (UCL) is a commonly injured elbow stabilizer during throwing. Shear wave elastography (SWE) is a technique that may reveal structural changes in the UCL that are indicative of ligament health and injury risk. The purpose of this study was to assess preseason and inseason shear wave velocity (SWV) in the UCL of collegiate pitchers and to asses repeatability of this measurement technique in healthy volunteers.

Iodine quantification and detectability thresholds among major dual-energy CT platforms.

Objectives: To estimate the minimum detectable iodine concentration on multiple dual-energy CT (DECT) platforms.

Methods And Materials: A phantom containing iodine concentrations ranging from 0 to 10 mg ml was scanned with five dual-energy platforms (two rapid kilo volt switching (r-kVs), one dual source (DS), one sequential acquisition and one split-filter). Serial dilutions of 300 mg ml iodinated contrast material were used to generate concentrations below 2 mg ml.