Percutaneous transhepatic cholangiodrainage as rescue therapy for symptomatic biliary leakage without biliary tract dilation after major surgery.

Symptomatic biliary leakage following major upper abdominal surgery is a severe complication resulting in increased morbidity and mortality. Treatment options usually include either endoscopic intervention or surgical revision. These options may be burdened by a high perioperative risk for the patient (e.

[Economic evaluation of angiographic interventions including a whole-radiology in- and outpatient care].

Purpose: To determine the economic efficiency of a whole-radiology in- and outpatient treatment with angiographic interventions performed as the main or sole therapy.

Materials And Methods: The calculations represent the data of a university radiology department, including the following angiographic interventions (neuroradiology not considered): Vascular intervention (PTA, stent implantation) of kidneys and extremities, recanalization of hemodialysis access, chemoembolization, diagnostic arterioportal liver CT, port implantation, varicocele embolization, PTCD, percutaneous implantation of biliary stent. First, the different angiographic interventions are categorized with reference to the German DRG system 2005.

Low-dose adenoviral immunotherapy of rat hepatocellular carcinoma using single-chain interleukin-12.

Generation of antitumor immunity by adenoviral gene transfer of interleukin-12 (IL-12) is a very promising concept in cancer gene therapy. Systemically, IL-12 has provoked toxic side effects at therapeutically relevant doses. Native IL-12 lacks effectiveness in clinical trials even when expressed intratumorally from adenoviral vectors.

Evolution of donor morbidity in living related liver transplantation: a single-center analysis of 165 cases.

Objective: During the last 14 years, living donor liver transplantation (LDLT) has evolved to an indispensable surgical strategy to minimize mortality of adult and pediatric patients awaiting transplantation. The crucial prerequisite to performing this procedure is a minimal morbidity and mortality risk to the healthy living donor. Little is known about the learning curve involved with this type of surgery.

Bile resistance of coated transjugular intrahepatic portosystemic shunt stents in a flow-model.

Purpose: We sought to test the bile resistance of transjugular intrahepatic portosystemic shunt (TIPS) stents with 3 different coatings.

Materials And Methods: Three stents with different coating materials (monolayer polyethylene terephthalate [PETP], monolayer polytetrafluoroethylene [PTFE], and double layer [PTFE]) were tested in a flow model. After testing the sealing of the system with isotonic saline solution, fresh human bile was circulated.

[MR-imaging of the breast at 0.5 Tesla: menstrual-cycle dependency of parenchymal contrast enhancement in healthy volunteers with oral contraceptive use?].

Introduction: To evaluate changes of contrast medium enhancement of the breast parenchyma due to menstrual cycle in healthy volunteers with oral contraceptive use in MR-imaging of the breast.

Material And Methods: 15 healthy volunteers (age: 22 - 36, mean 28,2) without breast disease were examined two times during one menstrual cycle (days 7 - 14 and days 21 - 2). Two volunteers were examined only in the second part of the cycle (days 21 - 2).

[Transjugular liver biopsy: trucut or aspiration biopsy with modified Ross needles?].

Purpose: The transjugular liver biopsy is performed in patients with coagulopathy to evaluate diffuse hepatopathies. Using a jugular venous access, a liver vein is cannulated and a transvascular biopsy taken. The two techniques in use are the aspiration biopsy with a modified 15G or 16G Ross needle used for TIPS and the core biopsy with a Trucut needle.

[MRCP in primary sclerosing cholangitis].

Purpose: Evaluation of MR-cholangiopancreaticography (MRCP) for the diagnosis of primary sclerosing cholangitis (PSC) in correlation with endoscopic retrograde cholangiopancreaticography (ERCP) and in comparison to the diagnostic accuracy of various T2-weighted sequences.

Methods And Materials: Fifty-five patients (34 males, 21 females; mean age 40 years, range 16 to 65 years) with suspected PSC were examined in a 1.5 T MR unit (Magnetom Vision, Siemens, Erlangen), using breath-hold transverse and coronal HASTE, paracoronal RARE and thin-sliced HASTE (TS-HASTE) sequences.

[Establishing a quality management system according to DIN EN ISO 9001:2000 in an academic radiological department].

Purpose: Establishing a quality management (QM) system according the guidelines of DIN EN ISO 9001:2000 in an academic radiological department.

Materials And Methods: To fulfill the requirements of an academic radiological department a quality management system according the guidelines of DIN EN ISO 9001 : 2000 has been established within one year. All important educational, research and patient care issues have been discussed in plenary sessions of all employees of the department twice a week.

Portal vein embolization vs. portal vein ligation for induction of hypertrophy of the future liver remnant.

The objective of this study was to assess the efficacy of right portal vein embolization (PVE) vs. right portal vein ligation (PVL) for induction of hypertrophy of the left lateral liver lobe before extended right hepatectomy. Thirty-four patients with primary or secondary liver tumors and estimated remnant functional liver parenchyma of less than 0.

[Formation of portal venous collaterals after ligation of the portal vein for induction of liver regeneration].

Purpose: Unilateral occlusion of the portal vein induces contralateral lobar hypertrophy - in contrast to complete portal vein occlusion which will result in a cavernous transformation. The impact of the formation of collaterals in partial portal vein occlusion is not sufficiently known. The lobar-hypertrophy- phenomenon is in clinical use for several years to induce iatrogenic liver growth to enable extended resections.

[MRI-based N-staging in esophageal cancer].

Purpose: For planning the therapeutic strategies and estimating the prognosis in esophageal cancer, N-staging is very important. To date, MRI still is of minor importance as imaging modality of the mediastinum despite promising developments in the past, like ECG-gating or "averaging" sequences, e. g.

[Native magnetic resonance tomography imaging of the Morris hepatoma (MH-7777A) in the rat].

Unlabelled: Goal of the study presented was to establish an oncological animal model for implantable and differentiated hepatoma in the rat and to evaluate imaging of the tumor induced using MRI.

Material And Methods: 20 male buffalo rats underwent tumor cell implantation of 150,000 MH7777-A cells via laparotomy. After 12 days MRI was performed T1w SE, T2w TSE fs, TIRM) for tumor detection and measurement of size.

[Topographic diagnosis in the area of the head-neck: initial experiences comparing ultrasound panorama images with CT and MRI].

Purpose: Due to the restricted width of the ultrasound array, documentation of topographical correlations in B-scan-echography is still difficult. By means of Color SieScape it is possible to produce successive images of the regions of interest by lateral movement of the ultrasound array. Aim of the present study was to evaluate this new method in comparison to CT and MRI.

Vertebral osteomyelitis due to Rhodococcus equi in a liver transplant recipient.

Rhodococcus equi is a rare but well-documented cause of cavitary pneumonia in immunocompromised patients. In this report the first case of R. equi infection manifesting as vertebral osteomyelitis is described.

[The significance of the arterial vascular supply of segment IV in living liver donation].

Purpose: Postoperative CT's in living liver donors were analysed retrospectively to examine whether atrophies of segment IV occur after procurement depending on arterial vascular supply.

Patients And Methods: Postoperative CT's from 19 living donors were retrospectively analysed. DSA of the upper abdomen had been performed on all donors prior to donation.

[Tuberculous pseudotumor of the omentum].

The abdomen is one of the most common extrathoracic manifestation sites for tuberculosis. The constellation of ascites, fatigue, fever, weight loss and ileus in younger patients should lead to the diagnosis, particularly in times when immunosuppression appears more frequently associated with AIDS. Using modern imaging techniques like CT and ultrasound and in combination with interventional procedures (guided paracentesis or biopsy) the number of diagnostic laparotomies and laparoscopies, like in the case presented could be reduced.

[Manifestation of pneumothorax 7 days after port implantation. Report of a single case].

The subcutaneous implanted venous port device offers a safe central venous access and allows for ambulatory treatment. This case report describes a late manifestation of a pneumothorax after venous port implantation which, in fact, is a rare but significant complications. The lack of a correlation of the signs and symptoms with the interventional procedure may lead to inadequate or delayed treatment.