Uli Fehrenbach1, Timo A Auer2, Wenzel Schöning3, Moritz Schmelzle3, Christian Jürgensen4, Thomas Malinka3, Marcus Bahra3, Dominik Geisel2, Timm Denecke2,5. 1. Department of Radiology, Charité - Universitätsmedizin Berlin, Klinik Für Radiologie, Augustenburger Platz 1, 13353, Berlin, Germany. uli.fehrenbach@charite.de. 2. Department of Radiology, Charité - Universitätsmedizin Berlin, Klinik Für Radiologie, Augustenburger Platz 1, 13353, Berlin, Germany. 3. Department of Surgery, Charité - Universitätsmedizin Berlin, Campus Charité Mitte/Campus Virchow-Klinikum, Berlin, Germany. 4. Division of Hepatology and Gastroenterology, Medical Department, Charité - Universitätsmedizin Berlin, Berlin, Germany. 5. Department of Diagnostic and Interventional Radiology, Universitätsklinikum Leipzig, Leipzig, Germany.
Abstract
PURPOSE: Fluid collections due to anastomotic leakage are a common complication after hepatopancreaticobiliary (HPB) surgery and are usually treated with drainage. We conducted a study to evaluate imaging work-up with a postoperative single-sequence (PoSSe) MRI for the detection of collections and indication of drainage. MATERIAL AND METHODS: Forty-six patients who developed signs of leakage (fever, pain, laboratory findings) after HPB surgery were prospectively enrolled. Each patient was examined by abdominal sonography and our PoSSe MRI protocol (axial T2-weighted HASTE only). PoSSe MRI examination time (from entering to leaving the MR scanner room) was measured. Sonography and MRI were evaluated regarding the detection and localization of fluid collections. Each examination was classified for diagnostic sufficiency and an imaging-based recommendation if CT-guided or endoscopic drainage is reasonable or not was proposed. Imaging work-up was evaluated in terms of feasibility and the possibility of drainage indication. RESULTS: Sonography, as first-line modality, detected 21 focal fluid collections and allowed to decide about the need for drainage in 41% of patients. The average time in the scanning room for PoSSe MRI was 9:23 min [7:50-13:32 min]. PoSSe MRI detected 46 focal collections and allowed therapeutic decisions in all patients. Drainage was suggested based on PoSSe MRI in 25 patients (54%) and subsequently indicated and performed in 21 patients (100% sensitivity and 84% specificity). No patient needed further imaging to optimize the treatment. CONCLUSIONS: The PoSSe MRI approach is feasible in the early and intermediate postoperative setting after HPB surgery and shows a higher detection rate than sonography. Imaging work-up regarding drainage of collections was successful in all patients and our proposed PoSSe MRI algorithm provides an alternative to the standard work-up.
PURPOSE: Fluid collections due to anastomotic leakage are a common complication after hepatopancreaticobiliary (HPB) surgery and are usually treated with drainage. We conducted a study to evaluate imaging work-up with a postoperative single-sequence (PoSSe) MRI for the detection of collections and indication of drainage. MATERIAL AND METHODS: Forty-six patients who developed signs of leakage (fever, pain, laboratory findings) after HPB surgery were prospectively enrolled. Each patient was examined by abdominal sonography and our PoSSe MRI protocol (axial T2-weighted HASTE only). PoSSe MRI examination time (from entering to leaving the MR scanner room) was measured. Sonography and MRI were evaluated regarding the detection and localization of fluid collections. Each examination was classified for diagnostic sufficiency and an imaging-based recommendation if CT-guided or endoscopic drainage is reasonable or not was proposed. Imaging work-up was evaluated in terms of feasibility and the possibility of drainage indication. RESULTS: Sonography, as first-line modality, detected 21 focal fluid collections and allowed to decide about the need for drainage in 41% of patients. The average time in the scanning room for PoSSe MRI was 9:23 min [7:50-13:32 min]. PoSSe MRI detected 46 focal collections and allowed therapeutic decisions in all patients. Drainage was suggested based on PoSSe MRI in 25 patients (54%) and subsequently indicated and performed in 21 patients (100% sensitivity and 84% specificity). No patient needed further imaging to optimize the treatment. CONCLUSIONS: The PoSSe MRI approach is feasible in the early and intermediate postoperative setting after HPB surgery and shows a higher detection rate than sonography. Imaging work-up regarding drainage of collections was successful in all patients and our proposed PoSSe MRI algorithm provides an alternative to the standard work-up.
Authors: Claudio Bassi; Christos Dervenis; Giovanni Butturini; Abe Fingerhut; Charles Yeo; Jakob Izbicki; John Neoptolemos; Michael Sarr; William Traverso; Marcus Buchler Journal: Surgery Date: 2005-07 Impact factor: 3.982