the ST group (n¼45, mean age 75.9, mean CCI 4.3, mean PGV 162mL), in whom mean number of collaterals coiled was 0.56, mean contrast used 150mL, and mean number of particle vials used was 0.72 (P¼NS for all). The only significantly different procedural parameters were mean fluoroscopy time (37.3 min for SN and 50.0 min for ST, P<0.001) and mean particle density achieved (SN¼0.46 vials/100mL gland volume and ST¼0.53 vials/100mL gland volume, P<0.001). Conclusions: Use of the Sniper® balloon-occlusion microcatheter in PAE was associated with lower fluoroscopy times, possibly from its anti-reflux mechanism safely allowing faster injection of particles. However, particle deposition was not enhanced by the Sniper®, nor did it decrease contrast use or protective coiling. Importantly, several cases in this series likely could not have been done safely without its anti-reflux mechanism. Gland necrosis and clinical improvement with Sniper® await further study.
The retrospective study was conducted in the Department of Radiology of the hospital from January 2022 to January 2023 to assess the ability of CBCT gray scale value to diagnose tumors and cysts and evaluate differences in bony changes of both. A total of 50 patients were included in the study. CBCT scanner with 68-1073μSv radiation dose was used for obtaining 3D images. Gray scale values were obtained on the tangential section. Radiological diagnosis was made after calculating mean gray values for benign lesions or cysts. Myxoma, odontogenic ghost cell tumor, and the adenomatoid odontogenic tumor had lower grayscale values, and multiple myeloma, cementoblastoma, acanthomatous ameloblastoma, residual cyst, and lateral periodontal cyst had higher values. The mean grayscale value for the tumor was 1468 ± 70.5, and for the cyst was 1292.1 ± 6.5. There was a significant correlation between both (P<0.001). The bone density of normal and pathological maxillofacial regions was compared. The radiolucent area (e.g., axillary sinus) had the lowest, and the radiopaque region (e.g., enamel) had the highest gray scale value. CBCT gray value is a powerful diagnostic tool for tumors, cysts, and other orofacial lesions and has better outcomes than conventional 2-D imaging.
other than previously embolized. Self limiting splenic infarct was seen in 6 patients. Mild abdominal pain was noted in patients embolized with NBCA. 1 patient developed liver infarct and subsequent liver abscess requiring percutaneous drainage. Conclusions: Direct percutaneous puncture and embolization is a safe and effective treatment of visceral PSAs and can be considered as an alternative treatment in patients with failed endovascular approach. This is the largest study group of direct percutaneous embolizations of visceral PSA.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.