Quality improvement guidelines for percutaneous management of acute limb ischemia.
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Biomedical subjects
Publications and source records attributed to Karim Valji.
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PURPOSE: Determine the feasibility of using three-dimensional ultrasonography (3D US) to assist in planning and performing endocavitary drainage of deep pelvic fluid collections. MATERIALS AND METHODS: Retrospective review of images and medical records of 16 patients in whom endocavitary 3D US was used during transvaginal or transrectal drainage of 17 deep fluid collections. 3D US was assessed regarding its ability to display the relevant structures, whether new information was provided compared with pelvic computed tomography (CT) and conventional two-dimensional US (2D US) displays, and whether this information altered drainage techniques. RESULTS: Targeted fluid collections were visualized in all patients. 3D US added information in 11 of 16 patients (69%) that, in turn, resulted in adjustment of interventional technique in eight of 16 patients (50%). Specific features of 3D US that provided new information included the simultaneous display of three orthogonal US images, display of reconstructed US image plane orientations not possible with 2D US, and the ability to interactively scroll images through complex structures to assess for communication between the loculations. An attached needle guide was used in 15 of 16 patients to improve the precision of needle placement. CONCLUSION: Endocavitary 3D US is feasible for assistance in transvaginal and transrectal drainage procedures, usually adds new information, frequently alters interventional technique, and permits precise access needle placement.
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PURPOSE: To describe our experience with ultrasound (US)-guided percutaneous liver biopsies using the INRAD 18 G Express core needle biopsy system. METHODS: One hundred and fifty-four consecutive percutaneous core liver biopsy procedures were performed in 153 men in a single institution over 37 months. The medical charts, pathology reports, and radiology files were retrospectively reviewed. The number of needle passes, type of guidance, change in hematocrit level, and adequacy of specimens for histologic analysis were evaluated. RESULTS: All biopsies were performed for histologic staging of chronic liver diseases. The majority of patients had hepatitis C (134/153, 90.2%). All patients were discharged to home after 4 hr of post-procedural observation. In 145 of 154 (94%) biopsies, a single needle pass was sufficient for diagnosis. US guidance was utilized in all but one of the procedures (153/154, 99.4%). The mean hematocrit decrease was 1.2% (44.1--42.9%). Pain requiring narcotic analgesia, the most frequent complication, occurred in 28 of 154 procedures (18.2%). No major complications occurred. The specimens were diagnostic in 152 of 154 procedures (98.7%). CONCLUSIONS: Single-pass percutaneous US-guided liver biopsy with the INRAD 18 G Express core needle biopsy system is safe and provides definitive pathologic diagnosis of chronic liver disease. It can be performed on an outpatient basis. Routine post-biopsy monitoring of hematocrit level in stable, asymptomatic patients is probably not warranted.