Judy U. Ahrar

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The aim of this study was to evaluate the effect of coaxial guide needle gauge (18 vs. 19 gauge) on the risk of pneumothorax and chest tube placement after CT-guided lung biopsy. Imaging records of all patients who had undergone CT-guided lung biopsies at our institution from March 1, 2006 to December 9, 2010 were retrospectively reviewed. Univariate and(More)
PURPOSE To characterize the performance of a 980-nm diode laser ablation system in an in vivo tumor model. MATERIALS AND METHODS This study was approved by the institutional animal care and use committee. The ablation system consisted of a 15-W, 980-nm diode laser, flexible diffusing-tipped fiber optic, and 17-gauge internally cooled catheter. Ten(More)
OBJECTIVES Real-time magnetic resonance imaging (MRI)-guided cryoablation has been investigated in open MRI systems with low magnetic fields (0.2-0.5 T). More advanced imaging techniques and faster imaging rates are possible at higher magnetic fields, which often require a closed-bore magnet design. However, there is very little experience with real-time(More)
BACKGROUND Although hepatic arterial chemoembolization (HACE) has been used for treatment of ocular melanoma metastatic to the liver, the prognostic indicators for survival after HACE have not been studied. We evaluated response rates and survival durations after HACE in such patients and analyzed factors affecting their survival. METHODS The medical(More)
OBJECTIVES The objective of this study was to report a single-center experience with magnetic resonance imaging (MRI)-guided biopsy in the musculoskeletal system using a closed-bore, cylindrical, high-magnetic-field (1.5-T) MRI unit. METHODS From May 2010 to July 2011, 100 consecutive MRI-guided biopsy sessions were undertaken for musculoskeletal lesions(More)
We reviewed the medical records of 42 patients with cutaneous melanoma metastatic to the liver who underwent hepatic artery chemoembolization (HACE) at our institution. HACE resulted in radiologic response (38.9%) or disease stabilization (47.2%) in most patients. The median overall survival (OS) and time to progression (TTP) of liver disease were 7.7 and 6(More)
PURPOSE To characterize the degree of contrast enhancement within the ablation zone immediately after radiofrequency (RF) ablation of renal tumors. MATERIALS AND METHODS Patients with renal tumors treated with percutaneous RF ablation at one institution between January 2004 and October 2007 were retrospectively reviewed. For each tumor, computed(More)
e264 Background: Ureteral strictures resulting from either active disease or the sequelae of cancer therapy are often managed with percutaneous nephrostomy (PCN) tubes. PCN tubes divert urine from the kidney into drainage bags, which are cumbersome to care for and potential sources of infection. In contrast, percutaneous nephroureteral (PCNU) tubes by(More)
OBJECTIVE Our primary purpose was to assess the impact of an inferior vena cava filter retrieval algorithm in a cancer population. Because cancer patients are at persistently elevated risk for development of venous thromboembolism (VTE), our secondary purpose was to assess the incidence of recurrent VTE in patients who underwent filter retrieval. METHODS(More)
To describe the incidence of multiple renal artery pseudoaneurysms (PSA) in patients referred for renal artery embolization following partial nephrectomy and to study its relationship to RENAL nephrometry scores. The medical records of 25 patients referred for renal artery embolization after partial nephrectomy were retrospectively reviewed for the(More)