A5028922664- Liver Disease and Transplantation
- Liver Disease Diagnosis and Treatment
- Organ Transplantation Techniques and Outcomes
- Hepatocellular Carcinoma Treatment and Prognosis
- Radiation Dose and Imaging
- Venous Thromboembolism Diagnosis and Management
- Central Venous Catheters and Hemodialysis
- Renal and Vascular Pathologies
- Gallbladder and Bile Duct Disorders
- Vascular Procedures and Complications
- Radiology practices and education
- Aortic aneurysm repair treatments
- Esophageal and GI Pathology
- Tracheal and airway disorders
- Aortic Disease and Treatment Approaches
- Vascular Anomalies and Treatments
- Abdominal vascular conditions and treatments
- Pancreatic and Hepatic Oncology Research
- Renal cell carcinoma treatment
- Uterine Myomas and Treatments
- Peripheral Artery Disease Management
- Pediatric Hepatobiliary Diseases and Treatments
- Vascular anomalies and interventions
- Biliary and Gastrointestinal Fistulas
- MRI in cancer diagnosis
University of California, San Francisco
2013-2023
University of California System
2011-2017
Society of Interventional Radiology
2015
American Gastroenterological Association
2011
Cardiovascular and Interventional Radiological Society of Europe
2011
Center For Policy Research
2010
Division of Graduate Education
2010
St. Luke's Hospital
2010
University of California San Francisco Medical Center
2008
Northwestern University
2007
One hundred patients underwent transjugular intrahepatic portosystemic shunt (TIPS) creation for variceal bleeding (n = 94), intractable ascites 3), hepatorenal syndrome 2), and preoperative portal decompression 1). Shunts were completed in 96 patients. Portal vein pressure was reduced from 34.5 mm Hg +/- 7.6 (standard deviation) to 24.5 6.2; the residual vein-hepatic gradient 10.4 0.9. Acute controlled 29 of 30 Of who successful TIPS creation, 26 have died 22 undergone liver...
In patients with hepatocellular carcinoma (HCC) exceeding conventional (T2) criteria for orthotopic liver transplantation (OLT), the feasibility and outcome following loco-regional therapy intended tumor downstaging to meet T2 OLT are unknown. this first prospective study on of HCC prior OLT, eligibility enrollment into a protocol included 1 lesion >5 cm ≤8 cm, 2 or 3 lesions at least >3 but ≤5 total diameter 4 5 nodules all ≤3 cm. Patients were eligible living-donor (LDLT) if tumors...
Four patients with inoperable hepatocellular carcinoma were treated a magnetic targeted carrier bound to doxorubicin (MTC-DOX) by using joint resonance (MR) imaging/conventional angiography system consisting of 1.5-T short-bore magnet connected C-arm unit sliding tabletop. Selective transcatheter delivery the MTC-DOX hepatic artery was monitored intraprocedural MR imaging, and interim catheter manipulation performed fluoroscopic guidance optimize agent tumor minimize normal tissue. The final...
No prior studies have shown that pre-operative loco-regional therapy for hepatocellular carcinoma (HCC) improves survival following orthotopic liver transplantation (OLT). We performed subgroup analyses according to pathologic HCC stage among 168 patients who underwent OLT test the hypothesis confers a advantage in at intermediate risk recurrence. Patients with T3 meeting proposed UCSF expanded criteria (single lesion not exceeding 6.5 cm or two three lesions none > 4.5 total tumor diameter...
Cirrhosis is frequently complicated by ascites that may become resistant to diuretic therapy. Transjugular intrahepatic portosystemic shunts (TIPS) represent a new treatment for this debilitating condition. The aim of study was ascertain the clinical efficacy TIPS, as well its impact on renal function and hormonal parameters. Five inpatients with refractory were studied prospectively before 3 14 days after TIPS. After completely resolved or minimal in all patients. Diuretics discontinued...
The feasibility and efficacy of transjugular intrahepatic portosystemic shunts (TIPS) were evaluated in 10 patients with preexisting portal vein occlusions. A standard approach was used six the for both recanalization TIPS placement. protal veins successfully recanalized established three patients. placement unsuccessful other because catheters could not be advanced through occluded segments. transhepatic four before catheterization attempted. Both technically successful all Bleeding stopped...
A consecutive series of 50 patients with malignant biliary obstruction were treated by means palliative drainage a metallic expandable stent. Stent placement was successful in all patients. The followed up prospectively at 2-month intervals over period 9-22 months. Forty-one (82%) died; nine (18%) are still living. overall patency and survival rates for the 5.8 months 7.5 months, respectively. 30-day mortality rate 8% (n = 4), minor complication 18% 9), major 4). One patient (2%) had...
Radiosurgery requires precise lesion localization. Fiducial markers enable tracking, but complications from insertion may occur. The purpose of this study was to describe fiducial marker into pulmonary lesions.Clinical and imaging records 28 consecutive patients with 32 lung nodules or masses who underwent a total 59 before radiosurgery were retrospectively reviewed.Eighteen (67%) developed pneumothorax, six (22%) required chest tube. rates pneumothorax 82% 40%, respectively, when 18-gauge...
To determine the arteriographic incidence and severity of renal arterial disease in potential donors to evaluate effect identifying vascular abnormalities on subsequent donor surgery.The records 716 living who underwent conventional arteriography were reviewed. Abnormal arteriograms reexamined characterize disease, renovascular surgery was ascertained with chart review.Renovascular noted dictated reports 78 patients (10.9%). The most common causes fibromuscular dysplasia atherosclerosis. 64...
To evaluate the accuracy of Doppler ultrasonography (US) in determination patency and detection stenosis transjugular intrahepatic portosystemic shunts (TIPS).Retrospective review was performed 251 sonograms obtained 79 patients who underwent TIPS placement. Sonograms were evaluated for (a) presence a spectral waveform or color flow signal within shunt, (b) maximum peak velocity (Vmax) measured at midportion TIPS, (c) direction intraparenchymal portal venous flow. Independent 116 venograms...
To retrospectively determine long-term outcomes in patients who have undergone tracheobronchial stent placement for benign diseases.Institutional Review Board approval was obtained this retrospective HIPAA-compliant study, with waiver of informed consent. Forty (22 female, 18 male; mean age, 52.0 years) were treated metallic airway stents stenosis identified from an interventional radiology database. Causes included transplant stricture (n = 13), tracheal tube injury 10), inflammation 6),...
PURPOSE: To analyze the outcome of percutaneous antegrade ureteral stent placement for treatment stenoses and leaks after renal transplantation. MATERIALS AND METHODS: Antegrade pyelography were performed in 45 patients with obstruction (n = 40), leak 3), or both 2). Obstructions graded as mild, moderate, complete, early (< 3 months transplantation) late (> months). RESULTS: The was successful 25 (57%) (average follow-up, 30 ureteroneocystostomy (UNC) most common site obstructions (22 41),...