Publications by authors named "Matthew C Larrison"
Access to diagnostic imaging is significantly limited in much of the world, and sub-Saharan Africa is no exception. Clinician-performed point-of-care ultrasound (POCUS) may provide increased access to diagnostic imaging for many patients in low-resource settings, but training in this modality is limited. We describe the development and implementation of a context-specific, multi-modal pilot POCUS curriculum involving hands-on instruction, in-person and online didactics, asynchronous online image review, and quantitative evaluation.
View Article and Find Full Text PDFPurpose: To retrospectively evaluate for pits along the dorsum of the pubic body in females and compare the presence/absence of these pits to vaginal birth data.
Materials And Methods: We retrospectively reviewed females with vaginal birth data who underwent pelvic CT. The presence of pits along the dorsum of the pubic body, pit grade (0 = not present; 1 = faintly imperceptible; 2 = present; 3 = prominent), and the presence of osteitis condensans ilii, preauricular sulcus, and sacroiliac joint vacuum phenomenon were assessed on imaging.
Article Synopsis
- The study aimed to improve arthroscopic decompression of the suprascapular nerve by identifying the best imaging method to measure distances to the suprascapular notch and quantifying the distances from standard arthroscopic entry points.
- Various imaging techniques were tested on cadaver shoulders, with 3D CT showing the highest accuracy in representing the distances (Rs = 0.90), while the study found mean distances from several portal sites to the notch.
- The findings suggest that using 3D CT for preoperative imaging can guide surgeons for safer procedures, especially by keeping instruments within 9 cm of the lateral portal to avoid injury during dissection.
Background: Surgical stabilization of the sternoclavicular joint (SCJ) is infrequent, and cardiothoracic surgery assistance is often recommended. Patient safety and surgeon efficiency may be improved by greater understanding of the anatomic relationships near the SCJ. The purpose of this study is to determine the distances from the SCJ to critical structures in the superior mediastinum.
View Article and Find Full Text PDFObjective: The objective of this article is to report and describe the clinical and imaging features of an avulsion fracture of the medial epicondyle after ulnar collateral ligament (UCL) reconstruction.
Conclusion: Avulsion fracture of the medial epicondyle is a rare complication of UCL reconstruction with distinct radiographic and MRI findings.
Objective: The purpose of this study was to evaluate the sensitivity and specificity of seven CT signs in the diagnosis of internal hernia after laparoscopic Roux-en-Y gastric bypass.
Materials And Methods: With institutional review board approval, the CT scans of 18 patients (17 women, one man) with surgically proven internal hernia after laparoscopic Roux-en-Y gastric bypass were retrieved, as were CT studies of a control group of 18 women who had undergone gastric bypass but did not have internal hernia at reoperation. The scans were reviewed by three radiologists for the presence of seven CT signs of internal hernia: swirled appearance of mesenteric fat or vessels, mushroom shape of hernia, tubular distal mesenteric fat surrounded by bowel loops, small-bowel obstruction, clustered loops of small bowel, small bowel other than duodenum posterior to the superior mesenteric artery, and right-sided location of the distal jejunal anastomosis.