Showing 3 Abstracts.
Background & Purpose: Fractures on MRI can be difficult to see, particularly if they are small or surrounded by edema and other heterogeneous signal changes. This is made more challenging if an x-ray is not available for review when reading an MRI, or if the injury on x-ray is subtle. The purpose of this exhibit is to review the different appearances and types of fractures by MRI, including avulsion, acute osteochondral, physeal related, and stress fractures, and help the learner develop a pattern-based approach when reviewing an MRI, in order to improve detection and confidence. Learning Objectives: 1. Recognize the different ways an acute fracture can appear by MRI, including understanding mechanisms of injury and any associated ligamentous or tendinous involvement. 2. Learn to approach each MRI the same way, with a careful assessment of bone marrow edema heterogeneity, joint fluid heterogeneity, and articular surfaces. 3. Develop awareness of subtle, small, or unusual fractures that may be hiding amidst edema or fluid. Content: This exhibit will portray and explain the imaging appearances of different fractures on MRI including: incomplete, avulsion, acute osteochondral, physeal related, and stress fractures. Different joint centered abnormalities will be emphasized, particularly the knee, shoulder, and pelvis. A pattern based approach will be reviewed in order to avoid missing subtle findings. This will include: 1. Searching within the heterogeneity of marrow edema patterns on both T1 and T2 weighted sequences to find linearity, subtle cortical depressions, or incomplete fracture lines. 2. Looking for healing or more chronic changes, including periosteal reaction by MRI. 3. Following articular cartilage and the physis to make sure they have normal contours and are smooth. 4. Examining joint fluid for avulsed joint bodies, with attention to any linear appearing signal changes in the dependent recesses of joints. Read More
Meeting name: SPR 2022 Annual Meeting & Postgraduate Course , 2022
Authors: Wyers Mary, Ganesh Ashwin, Samet Jonathan
Contrast enhanced voiding urosonography (CEVUS) uses intravesically administered microbubble contrast to detect vesicoureteral reflux (VUR) and urethral anomalies with ultrasound. Multiple studies have suggested CEVUS can replace voiding cystourethrogram (VCUG) as a radiation free alternative. Analysis of ureterovesical junction (UVJ) and ureters on VCUG documenting UVJ position, ureteral duplication, periureteral diverticula and ureteroceles is important as anatomic variations may affect management and surgical approach. <i>Our purpose was to assess UVJ region visualization in children with VUR detected on CEVUS.</i> Read More
Meeting name: SPR 2020 Annual Meeting & Postgraduate Course , 2020
Authors: Benya Ellen, Prendergast Francis, Liu Dennis, Wyers Mary
Keywords: contrast enhanced voiding urosonography, vesicoureteral reflux, ureterovesical junction
Fat is a normal part of the human body, though can also be present in a variety of pathologic conditions. It is important to understand its physiologic distribution at various ages and appearance on multimodality imaging exams during growth. In addition, recognizing the presence of fat in tumors, in abnormal locations of the body, or in syndromic conditions is helpful in generating an accurate diagnosis. The purpose of this exhibit is to review the normal appearance and distribution of fat on ultrasound, CT, and MRI during different stages of development and to help the learner improve their knowledge and confidence when reporting cases concerning abnormalities of fat. Read More
Meeting name: SPR 2024 Annual Meeting & Postgraduate Course , 2024
Authors: Gorbea Andres, Biaggi Maria, Wyers Mary, Krauss Jillian, Moum Sarah