Peritoneal Insufflation Facilitates CT-Guided Percutaneous Jejunostomy Replacement.

OBJECTIVE: The purpose of this report was to examine whether peritoneal insufflation can facilitate CT-guided percutaneous jejunostomy replacement. CONCLUSION: Peritoneal insufflation allowed clear differentiation of the adherent jejunum from adjacent bowel, permitting confident direct puncture into the adherent jejunum without the need for jejunopexy anchors.

Impact of the Professional Component MPPR Policy on Interdivisional Finances in an Academic Radiology Department.

PURPOSE: The professional component (PC) Multiple Procedure Payment Reduction (MPPR) policy reduces reimbursement for two or more imaging services rendered by the same group practice for a single patient in a single session. The purpose of this study was to analyze the impact of the PC MPPR on interdivisional finances in an academic radiology department. METHODS: A retrospective analysis of Medicare collections from imaging services rendered by a single academic radiology department in a tertiary care medical center for calendar year 2014 was performed. The impact of the PC MPPR on each division was calculated as the fraction of the total departmental PC MPPR, and as the proportion of the divisional revenue. RESULTS: The total decrease in Medicare collections as a result of the PC MPPR was 5.35%. The impact of the PC MPPR on each division as a fraction of the total departmental PC MPPR was: abdominal division (16.63%); thoracic division (23.56%); breast division (0.03%); musculoskeletal division (11.92%); neuroradiology division (34.40%); and noninvasive cardiovascular division (13.46%). The impact of the PC MPPR on each division as a fraction of the divisional revenue was: abdominal (2.82%); thoracic (11.83%); breast (0.66%); musculoskeletal (6.01%); neuroradiology (5.31%); and noninvasive cardiovascular (5.85%). CONCLUSIONS: The PC MPPR differentially affects divisions within an academic radiology department. The neuroradiology and thoracic divisions of our department were the most adversely affected, owing to the high frequency of combined examinations. We speculate that this impact has implications for divisional self-sufficiency, interdivisional relationships, and resident decision making regarding subspecialty training.

CT volumetric analysis of pleural effusions: a comparison with thoracentesis volumes.

RATIONALE AND OBJECTIVES: The primary objective of this study was to compare computed tomography (CT) volumetric analysis of pleural effusions with thoracentesis volumes. The secondary objective of this study was to compare subjective grading of pleural effusion size with thoracentesis volumes. MATERIALS AND METHODS: This was a retrospective study of 67 patients with free-flowing pleural effusions who underwent therapeutic thoracentesis. CT volumetric analysis was performed on all patients; the CT volumes were compared with the thoracentesis volumes. In addition, the subjective grading of pleural effusion size was compared with the thoracentesis volumes. RESULTS: The average difference between CT volume and thoracentesis volume was 9.4 mL (1.3%) ± 290 mL (30%); these volumes were not statistically different (P = .79, paired two-tailed Student's t-test). The thoracentesis volume of a "small," "moderate," and "large" pleural effusion, as graded on chest CT, was found to be approximately 410 ± 260 cc, 770 ± 270 mL and 1370 ± 650 mL, respectively; the thoracentesis volume of a "small," "moderate," and "large" pleural effusion, as graded on chest radiograph, was found to be approximately 610 ± 320 mL, 1040 ± 460 mL, and 1530 ± 830 mL, respectively. CONCLUSIONS: CT volumetric analysis is an accessible tool that can be used to accurately quantify the size of pleural effusions.

Intraventricular migration of silicone oil: A mimic of traumatic and neoplastic pathology.

We describe an 80-year-old woman with intraventricular silicone oil mimicking traumatic pathology upon presentation to the emergency department after a ground-level fall. Intraventricular migration of silicone oil from prior intraocular endotamponade is rare having only been described in a handful of case reports. While it has a unique and characteristic appearance on imaging, intraventricular silicone oil can be confused with intraventricular hemorrhage or calcified ventricular neoplasms. Recognition and differentiation of intraventricular silicone oil from more sinister pathology is essential for the radiologist, neurologist and neurosurgeon and can be done with routine head CT scan. We discuss the imaging findings of intraventricular silicone oil and review the current understanding of this unusual phenomenon.