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We prospectively evaluated the feasibility and technical features of MR-guided lumbosacral injection procedures in open high-field MRI at 1.0 T. In a CuSO4·5H2O phantom and five human cadaveric spines, fluoroscopy sequences (proton-density-weighted turbo spin-echo (PDw TSE), T1w TSE, T2w TSE; balanced steady-state free precession (bSSFP), T1w gradient echo(More)
BACKGROUND Incisional hernia after liver transplantation is a common complication with an incidence between 5% and 34%. This prospective study analyzed risk factors, surgical management and long-term results after hernia repair. MATERIAL AND METHODS From February 2002 until August 2009, 810 liver transplantations were performed. 77 patients (9.5%)(More)
Hemostasis is a central issue in laparoscopic surgery. Ultrasonic scissors and bipolar clamps are commonly used, with known advantages with each technique. The prototype of new surgical scissors, delivering ultrasonically generated frictional heat energy and bipolar heat energy simultaneously (THUNDERBEAT® [TB]), was compared to ultrasonic scissors(More)
The aim of this study was to identify suitable interactive (dynamic) magnetic resonance (MR) sequences for real-time MR-guided liver dissection in a 1.0-T high field open MRI system. Four dynamic sequences encompassing balanced steady state free precession (bSSFP), T1W gradient echo (GRE), T2W GRE and T2W fast spin echo (FSE) were analysed regarding the(More)
BACKGROUND Despite surgical advances, anastomotic leaks remain a major complication after rectal resection. Endoscopic techniques are increasingly used as an alternative or in addition to conventional operative therapy of anastomotic leakage. We have analyzed the impact of endoscopic treatment on the outcome of patients with leaks after resection of rectal(More)
In recent years, laparoscopic hepatic resection is performed by an increasing number of surgeons. Despite many advantages of the laparoscopic procedure, it is unclear whether the pneumoperitoneum affects the postoperative liver regeneration after liver resection. The current study aimed to investigate the influence of a carbon dioxide (CO2) pneumoperitoneum(More)
INTRODUCTION Irreversible electroporation (IRE) is considered superior to thermoablations for tumors in the vicinity of larger vessels and the liver hilum. We report on an initial clinical experience of IRE. MATERIALS AND METHODS Indications included focal liver lesions <3 cm, irresectability due to contraindications and expected complications and/or(More)
To evaluate the feasibility of MR-guided discography using an open 1 Tesla MRI system. 48 disc segments of 41 patients scheduled for intradiscal thermal treatment, total disc replacement or spondylodesis were examined. A 1.0-T open MRI was used for instrument guidance and imaging. After primary disc puncture under guidance of interactive PDw TSE imaging,(More)
OBJECTIVE Esophageal anastomotic leaks, perforations, and fistulae are associated with considerable morbidity and mortality. The aim of the present study was to assess the efficacy of self-expanding plastic stents in the treatment of esophageal leaks. METHODS From 2001 to 2009, 41 patients with postoperative anastomotic leaks (n = 30), esophageal(More)
The application of stents in benign colorectal strictures is considered controversial. The aim of the present study was to assess effectiveness and complications associated with colorectal stent placement in benign colorectal disease. Fourteen patients with benign colorectal strictures who had undergone previous surgery (colorectal anastomotic stenosis, 13;(More)