MRI Safety Guidance Cerebral (aneurysm) clips are at first contraindicated for MRI examinations unless specifically approved. Gadoxetic acid-enhanced MRCP (b, coronal MIP reconstructed image) showed active leakage of enhanced bile at the origin of the 6th segment branch, excluded by the plug. Practically, surgeons suspect iatrogenic injury in any patient who does not rapidly recover after cholecystectomy or returns to the emergency department following hospital discharge. Multidetector computed tomography (CT) represents the “workhorse” modality to rapidly investigate the postoperative abdomen in order to provide a reliable basis for an appropriate choice between conservative, interventional or surgical treatment. Endoscopic management (sphincterotomy, nasobiliary drain and stent placement) is the primary and highly effective approach for major and cystic duct leaks (Fig. Abdom Imaging 39:398–410, Hoeffel C, Azizi L, Lewin M et al (2006) Normal and pathologic features of the postoperative biliary tract at 3D MR cholangiopancreatography and MR imaging. • Contrast-enhanced multidetector computed tomography (CT) is increasingly requested early after cholecystectomy and represents the “workhorse” modality that rapidly provides a comprehensive assessment of the operated biliary tract and abdomen. 40 … The faintly calcific fragment (arrow in c) corresponded to a dropped gallstone. Br J Radiol 86:20120588, CAS  Finally, additional gadoxetic acid-enhanced MRCP (Fig. Embolisation with glue (Glubran 2, GEM, Viareggio, Italy) plus Lipiodol ultimately allowed resolution of the fistula. a–c Early postoperative CT after laparoscopic cholecystectomy showed gastric dilatation with stagnant fluid, minimal fluid in the gallbladder fossa (arrow in a) and a homogeneous water-attenuation collection (* in b) extending from the clips at the surgical site towards the lesser sac, consistent with biloma. Due to the growing medico-legal concerns and the vast number of cholecystectomies, radiologists are increasingly requested to investigate recently operated patients. Specifically, some surgeons tried to decrease the size and number of ports to improve cosmetic and postoperative outcomes, until the most recent development represented by the single-site laparoscopic cholecystectomy. Intra-abdominal bleeding arises from the surgical bed secondary to inadequate vessel ligation or haemostasis, thermal or mechanical injury of either the cystic or right hepatic artery and is more challenging to control laparoscopically than during open surgery. New discussion Reply. Urgent MRCP allows rapid, accurate assessment of presence, level and length of injury, plus detection of subhepatic collections. Radiographics 29:1725–1748, Alegre Castellanos A, Molina Granados JF, Escribano Fernandez J, Gallardo Muñoz I, Triviño Tarradas Fde A (2012) Early phase detection of bile leak after hepatobiliary surgery: value of Gd-EOB-DTPA-enhanced MR cholangiography. Two patients with biliary obstruction from iatrogenic early post-laparoscopic cholecystectomy biliary injuries. 3a), rather than laparoscopy (Fig. As a result, cholecystectomy currently represents the most common abdominal surgery and accounts for over 750,000 operations annually in the USA [1]. a Right subphrenic abscess (*) abutting the bare area of the liver 2 weeks after urgent laparoscopic cholecystectomy, which was treated by open surgical drainage (cultures positive for Klebsiella). Insights into Imaging Floor polishers are poor MRI system cleaners! Unenhanced (b) and post-contrast (c) CT images confirmed abscess collection occupying the surgical bed, with predominantly fluid content, non-dependent air and thin enhancing peripheral wall. In contrast, these complications were not encountered with open cholecystectomy using thread to ligate the duct. After recent cholecystectomy, a limited amount of fluid is normally present in the surgical bed (Fig. 4. Provided that liver function is preserved, gadoxetic acid-enhanced MRCP visualises the opacified intra- and extrahepatic bile ducts and cystic duct remnant (Fig. An office chair was in the wrong place - at ANY time! Early cross-sectional imaging following open and laparoscopic cholecystectomy: a primer for radiologists, Albeit different classification systems exist, from the practical viewpoint, imaging should help in distinguishing between minor leakage (such as those from peripheral bile radicles), which can be managed conservatively, from major ductal leaks and CBD injuries ,which require intervention. The feared biliary obstruction occurs after approximately 1% of laparoscopic cholecystectomies, a figure which is almost double compared to that of open cholecystectomy, usually secondary to surgeon's misinterpretation of a normal or variant biliary anatomy. Reconstructing thick-slab maximum intensity projection (MIP) images is helpful to visualise the course of surgical drains, to improve the detection of active bleeding and to provide a vascular roadmap to the interventional radiologist if embolisation is considered. Unfortunately, the incidence of post-cholecystectomy haemorrhage and biliary injuries has not been influenced by the technique shift. After ERCP (d) confirmation of impassable obstruction, reoperation was required to remove the misplaced clips. After laparoscopic cholecystectomy, a non-dilated cystic duct remnant (generally measuring 1–2 cm, up to 5–6 cm in length) is identifiable (Fig. 2) and laparotomy incision site (Fig. Evidence of a cholecystectomy is often seen on imaging procedures with surgical clips in the gallbladder fossa and radiologists should be aware of possible complications. In the past, iatrogenic obstructions often underwent surgical revision and required bilio-enteric anastomosis. a, b Forty-eight hours after open cholecystectomy converted from laparoscopic cholecystectomy, CT showed perihepatic blood (*) isoattenuating with the liver on precontrast scans (a), oozing externally from drainage (thick arrows), without appreciable contrast extravasation on both arterial (b) and venous (not shown) enhanced phases. Deep infections complicating either open or laparoscopic cholecystectomy are rare (overall incidence below 1%) but the risk becomes higher (approximately 3%) after intraoperative spillage of gallstones [17,18,19]. Compared to traditional open cholecystectomy, laparoscopy minimised the perioperative mortality and duration of hospitalisation and allowed for an earlier return to normal activities with cosmetically acceptable results. 18). 19). Cholecystectomy, titanium clips Follow Posted 9 years ago, 6 users are following. Insights Imaging 4:77–84, Hii MW, Gyorki DE, Sakata K, Cade RJ, Banting SW (2011) Endoscopic management of post-cholecystectomy biliary fistula. The risk is highest when MRCP has not been obtained before laparoscopic cholecystectomy. The traditional surgical Bismuth system allows the categorisation of iatrogenic injuries as type I (located over 2 cm distal from the biliary confluence), type II (less than 2 cm from the biliary bifurcation), type III (absent common hepatic duct with intact confluence) and type IV (completely or partially damaged biliary confluence) [27,28,29, 39]. Cholecystectomy. Morrin MM, Kruskal JB, Hochman MG et-al. After the critical step represented by clipping of the cystic duct and cystic artery, the gallbladder is dissected and extracted [15, 16]. 9e) and may allow the detection of extravasated bile into collections, perihepatic fluid or both, thus providing diagnostic confirmation and anatomic definition of bile leakage [30,31,32]. Viewing at lung or bone window settings eases the identification of metallic surgical staples and free or localised intra-abdominal air. {"url":"/signup-modal-props.json?lang=us\u0026email="}. 2000;174 (5): 1441-5. With 360 o rotation, all angles are reachable; Dual-layer clip lock. Respectively following laparoscopic and open cholecystectomy, the trocar access (Fig. 2 ) and laparotomy incision site (Fig. The wide use of laparoscopy induces the need to understand more clearly the presentation and pathophysiology of this … Focused coronal image (c) showed a tiny stone (thin arrow) at the distal CBD, confirmed and treated by ERCP. Albeit generally considered safe, cholecystectomy may result in adverse outcomes with non-negligible morbidity. 16). MRI safety during the immediate postoperative period is not a concern since most surgical clips are made from nonferromagnetic material. At MRCP, biliary obstruction is heralded by diffuse or segmental duct dilatation above a strictured tract or a full-thickness discontinuity (Fig. Retained surgical sponges are shown on CT as mixed attenuation masses, which are easily confused with abscess collections or haematomas. After automated power injection of 110–130 mL of 300–370 mgI/mL iodinated contrast medium (according to lean body weight and iodine concentration) at 2.5–4 mL/s flow rate, an arterial phase scanning may be acquired using a bolus tracking technique with a region-of-interest in the infrarenal aorta, 10 s delay and 120 HU threshold. They have in recent years made clips that are now inert and safe for MRI - however you would need to check with your doctor to confirm the safety of this before having any … 15), inadvertent CBD clipping, thermal injury and extrinsic compression by an abnormal collection [27, 28]. Rarely one or more clips can get displaced. Case 3: anterior abdominal wall collection, biliary obstruction, e.g. Laparoscopic cholecystectomy is a commonly performed surgical procedure and radiologists are often called on to identify or rule out postoperative complications. MRCP reliably detects intrabiliary filling defects, even in non-dilated CBD (Fig. The most common appearance of post-cholecystectomy bleeding. ultrasound showed that there are clips in my gallbladder, doctors removed gallstones years ago Non visible left ovary on CT scan and surgical clip metal clips after surgery I had implanted cerebral titanium clips still have surgical clip inside Just discovered multiple metal Clips Bile leaks have been associated with a number of surgical procedures, ... CT and MRI, Vol. A retrospective analysis of 9542 consecutive laparoscopic operations. Without ionising radiation, MRCP non-invasively depicts the biliary tract above and below tight strictures or obstruction, which is unfeasible by ERCP and percutaneous transhepatic cholangiography. In such cases, the correct diagnosis is crucial in optimizing patient management. 2 … PubMed Google Scholar. The classic post-laparoscopic cholecystectomy injury results from transection or ligation of the extrahepatic CBD instead of the cystic duct. In most of the cases it does not result in complications, however intra abdominal abscess formation was reported in literature. Gallbladder fossa abscess (*) observed after open cholecystectomy converted from laparoscopic cholecystectomy because of gallbladder perforation and intraperitoneal spillage of infected bile, sonographically (a) seen as ovoid well-demarcated infrahepatic collection with inhomogeneous hypo-anechoic structure. Radiology 231:101–108, Lee NK, Kim S, Lee JW et al (2009) Biliary MR imaging with Gd-EOB-DTPA and its clinical applications. Furthermore, current respiratory-triggered acquisitions limit the need for patient cooperation to obtain valid diagnostic images. Check for errors and try again. Note residual intraperitoneal air (+) d, e Paraduodenal and anterior pararenal haematoma (*) seen on unenhanced (d) CT on the 3rd postoperative day after laparoscopic cholecystectomy, with drainage (thick arrows) still in place, without contrast blushes, suggesting active bleeding on arterial-phase CT (e); size and attenuation of the hematoma tended to regress at follow-up CT (not shown) on conservative treatment, including transfusions, Active haemorrhage diagnosed 48 h after laparoscopic cholecystectomy as extravascular contrast “blush” (arrowheads) on arterial (a) and portal venous (b) CT images, within infrahepatic haematoma (*), which was confirmed angiographically (c) and effectively treated by embolisation. Movement of clips or staples placed in a body cavity can present a hazard, but this is often reduced due to the formation of fibrosis around the clips. Radiographics 34:613–623, Haribhakti SP, Mistry JH (2015) Techniques of laparoscopic cholecystectomy: nomenclature and selection. In vivo, MRC image quality was impaired by susceptibility artifacts in three of 21 cases at 3 T and in two of 21 cases at 1.5 T. Overall, biliary pseudo-obstructions due to susceptibility artifacts from cholecystectomy surgical clips were not substantially more common on 3-T MRC in clinical practice, and patients with a history of prior cholecystectomy should not be excluded from a 3 … A collection with features consistent with postoperative ileus, after percutaneous drainage ( thick arrow ) directed to the setting! Post operative bleed indicates failure of primary haemostasis, eg cholecystectomy clips are applied during cholecystectomy on the cystic and... Cholecystectomy performed at another hospital gaseous distension consistent with a complaint of severe abdominal pain for the interpretation post-cholecystectomy. 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