Long-term results of percutaneous biliary balloon dilation treatment for benign hepaticojejunostomy strictures: are repeated balloon dilations necessary?

Purpose: To determine the safety, efficacy, and long-term results of percutaneous biliary balloon dilation (PBBD) of benign hepaticojejunostomy strictures and evaluate the necessity of repeated PBBD in this setting.

Materials And Methods: PBBD was performed after traversing hepaticojejunostomy strictures in 89 patients (40 male, 49 female; age range, 19-84 y; mean age ± SD, 54.5 y ± 14.

Self-expanding covered metallic stent treatment of esophagojejunostomy fistulas.

Purpose: The purpose of this study is to analyze the outcomes of the self-expanding covered metallic stent (SECMS) therapy in the management of the postoperative anastomotic leaks that seen after total gastrectomy-esophagojejunostomy (EJ) operations.

Materials And Methods: Contrast radiography and endoscopy revealed EJ fistulas in 14 patients. SECMSs were implanted both fluoroscopically and endoscopically to seal fistulas.

The impact of endoscopic retrograde cholangiopancreatography education on radiation exposure to experienced endoscopist: 'trainee effect'.

Background: Endoscopic retrograde cholangiopancreatography(ERCP), as with other fluoroscopic procedures, carries the risk of exposure of staff to radiation. However, over the last two decades, only a few studies have investigated this risk.

Objective: The aim of this work was to evaluate the dose of radiation exposure to staff participating in ERCP procedures in a busy teaching hospital that performs more than 1,850 procedures annually.

MDCT angiography of isolated right subclavian artery.

Isolation of a subclavian artery is an uncommon congenital anomaly of the aortic arch in which one subclavian artery loses its connection with the aorta and originates from the homolateral pulmonary artery by way of a ductus arteriosus. Isolation of the left subclavian artery in patients with a right aortic arch is well known. However, isolated right subclavian artery with a left-sided aortic arch is an extremely rare condition.

Branching patterns of the main portal vein: effect on estimated remnant liver volume in preoperative evaluation of donors for liver transplantation.

Objectives: To compare estimated remnant liver volume (ERLV) ratios among the major main portal vein (MPV) variants.

Methods: Eighty-five potential donors underwent multidetector CT examination. Arterial, portal and hepatic venous phase images were obtained.

Percutaneous management of malignant biliary disease: factors influencing the ability to overcome the stricture.

Purpose: To determine the factors affecting the ability to cross malignant biliary obstructions in percutaneous transhepatic interventions.

Materials And Methods: In this study, 256 patients with 310 obstructive malignant biliary lesions from May 2006 to January 2009 were analyzed retrospectively. All of the patients had undergone percutaneous transhepatic cholangiography and intervention.

Triple metallic stenting in hilar malignant biliary obstructions.

Purpose: To research the effects of triple stenting on primary patency rates and on clinical and biochemical findings in patients with high-level malignant biliary obstruction.

Materials And Methods: We analyzed eight patients who had undergone triple stenting for hilar malignant biliary obstruction, mainly with the percutaneous approach, between January 2009, and September 2009. Pre-interventional bilirubin levels and the existence of pruritus or cholangitis were recorded.

Coarctation of the aorta in adults: preoperative evaluation with multidetector CT angiography.

Purpose: To evaluate the reliability of 16-slice multidetector computed tomographic (MDCT) angiography for the preoperative morphologic assessment of coarctation of the aorta in adults.

Materials And Methods: Twenty-four adult patients with clinical suspicion of coarctation of the aorta who underwent both Doppler echocardiography and MDCT angiography were included in this study. The sensitivities of diagnosis were assessed comparing MDCT and Doppler echocardiography with surgical results.

CT urography of a vesicourachal diverticulum containing calculi.

Urachal remnant disease is a relatively rare urological condition that presents a variety of clinical problems in adult patients. Contrast-enhanced multi-detector row computed tomography (MDCT) urography is a new diagnostic imaging technique providing comprehensive evaluation of the upper and lower urinary tract. MDCT urography performed with a combination of unenhanced, nephrographic phase, and excretory- phase imaging can demonstrate a wide spectrum of disease in these patients with a single study.

Multidetector CT urography of renal fusion anomalies.

Renal fusion anomalies, in which both kidneys are fused togeher in early embyronic life, are rarely encountered. Once a fused kidney is diagnosed or suspected, further laboratory and imaging evaluation should be performed to assess the status of the kidneys and to look for treatable causes of renal pathology. The early dignosis of potential complications that can accompany this anomaly must be made in order to prevent permanent renal damage.

Can multidetector row CT visualize the right and left inferior phrenic artery in a population without disease of the liver?

Purpose: To determine the ability to visualize the origin of the right inferior phrenic artery (RIPA) and the left inferior phrenic artery (LIPA) by multidetector row computed tomography (MDCT) in a population without disease of the liver.

Methods: The origin of the RIPAs and the LIPAs were evaluated using arterial-phase MDCT images in 200 patients.

Results: The RIPA origin was detected in all cases, while LIPA origin was detected in 193 (96.

Inferior mesenteric arteriovenous fistula with ischemic colitis: multidetector computed tomographic angiography for diagnosis.

Inferior mesenteric arteriovenous fistula is rare and may be congenital or acquired. Two serious manifestations may occur in the course of the disease: portal hypertension and bowel ischemia. The diagnosis is generally established by conventional angiography.

Evaluation of the effect of visceral fat area on the distance and angle between the superior mesenteric artery and the aorta.

Purpose: To investigate the effect of visceral fat area on the distance and angle between the superior mesenteric artery (SMA) and the aorta.

Methods: On axial and sagittal images from abdomen CT scan, the distance and the angle between the SMA and the aorta were measured at the location where the third part of the duodenum crosses. The visceral fat area was calculated at the level of the umbilicus on the abdominal CT section.

Congenital anomalies of the aortic arch: evaluation with the use of multidetector computed tomography.

Congenital anomalies of the aortic arch have clinical importance, as the anomalies may be associated with vascular rings or other congenital cardiovascular diseases. Multidetector computed tomography (MDCT) angiography enables one to display the detailed anatomy of vascular structures and the spatial relationships with adjacent organs; this ability is the greatest advantage of the use of MDCT angiography in comparison to other imaging modalities in the evaluation of the congenital anomalies of the aortic arch. In this review article, we illustrate 16-slice MDCT angiography appearances of congenital anomalies of the aortic arch.

Noninvasive evaluation of coronary artery bypass grafts and native coronary arteries: is 16-slice multidetector CT useful?

Purpose: To investigate the diagnostic accuracy and limitations of 16-slice multidetector computed tomography (MDCT) in the detection of significant ( > 50%) stenosis of coronary artery bypass grafts (CABG) and native coronary arteries.

Materials And Methods: One hundred two patients with 236 grafts were investigated by 16-slice MDCT. Native coronary arteries were also investigated.

Preoperative staging of renal cell carcinoma with multidetector CT.

Purpose: To evaluate the diagnostic accuracy of multidetector computed tomography (MDCT) for preoperative staging of renal cell carcinoma (RCC) using the 1997 TNM (tumor, node, metastasis) classification.

Materials And Methods: We conducted a retrospective review of MDCT in 57 consecutive patients with RCC performed for tumor staging before radical (n = 51) or partial nephrectomy (n = 6). The scanning protocol of MDCT consisted of unenhanced and biphasic contrast-enhanced scans during corticomedullary and nephrographic phases.

Multidetector computed tomographic angiography of aberrant subclavian arteries.

The purpose of this study was to evaluate the utility of 16-slice multidetector computed tomographic (MDCT) angiography for identifying anatomic features of aberrant subclavian arteries. Seventeen patients with aberrant subclavian arteries were assessed by MDCT angiography. The aortic arch position, the presence of a Kommerell's diverticulum, aneurysm, vascular compression of trachea and oesophagus and associated cardiovascular abnormalities were evaluated.

Multidetector computed tomography for preoperative evaluation of vascular anatomy in living renal donors.

Background: Currently, multidetector computed tomographic (MDCT) angiography has become a noninvasive alternative imaging modality to catheter renal angiography for the evaluation of renal vascular anatomy in living renal donors. In this study, we investigated the diagnostic accuracy of 16-slice MDCT in the preoperative assessment of living renal donors.

Methods: Fifty-nine consecutive living renal donors (32 men, 27 women) underwent MDCT angiography followed by open donor nephrectomy.

Multidetector CT angiography of renal vasculature: normal anatomy and variants.

Knowledge of the variations in renal vascular anatomy is important before laparoscopic donor or partial nephrectomy and vascular reconstruction for renal artery stenosis or abdominal aortic aneurysm. Recently, multidetector computed tomographic (MDCT) angiography has become a principal imaging investigation for assessment of the renal vasculature and has challenged the role of conventional angiography. It is an excellent imaging technique because it is a fast and non-invasive tool that provides highly accurate and detailed evaluation of normal renal vascular anatomy and variants.

Imaging of coronary artery anomalies: the role of multidetector computed tomography.

Background: Coronary artery anomalies are evaluated by using catheter-based angiography. Multidetector row-computed tomography (MDCT) is a new noninvasive imaging technique that has excellent spatial resolution for detecting the origin and course of a coronary anomalous vessel.

Objective: To determine the sensitivity of multidetector computed tomography in patients who had coronary artery anomaly demonstrated by conventional coronary angiography.

Imaging of coronary artery fistulas by multidetector computed tomography: is multidetector computed tomography sensitive?

Background: Coronary angiography is the gold standard for diagnosing coronary artery fistulas (CAFs). Multidetector computed tomography (MDCT) is a recently developed imaging technique for detecting coronary artery stenosis, coronary artery anomalies, and coronary artery fistulas and their courses.

Objective: We aimed to determine accuracy or sensitivity of MDCT in patients having CAF.

Cake kidney: MDCT urography for diagnosis.

Cake (fused pelvic) kidney is an uncommon congenital anomaly. Early diagnosis and recognition of potential complications that may accompany this anomaly are important to prevent permanent renal impairment. To the best of our knowledge, this is the first report on a case of cake kidney that was diagnosed by multidetector row computed tomographic urography.

Colour Doppler examination of early and late orbital haemodynamic changes in eyes with eyelid oedema due to blunt trauma.

Purpose: To evaluate the early and late alterations in orbital blood flow parameters in eyes with severe eyelid swelling due to blunt trauma by using colour Doppler ultrasonography (CDU).

Methods: Blood flow parameters in the ophthalmic artery (OA), central retinal artery (CRA), short posterior ciliary arteries (SPCAs) and central retinal vein (CRV) were examined by CDU in 62 eyes of 31 patients with unilateral blunt trauma and in 32 eyes of 32 normal subjects. Patients were examined within the first 5 days and at least 1 month after trauma.

Ectopic hypoplastic and multiseptate gallbladder with coexisting choledochal cyst: evaluation with sonography and magnetic resonance cholangiopancreaticography.

Multiseptate gallbladder, a rare congenital anomaly, may exist as an isolated anomaly or may coexist with other biliary system anomalies. We report a case of a multiseptate, ectopic, hypoplastic gallbladder associated with a choledochal cyst. The diagnosis was made using sonography and magnetic resonance cholangiopancreaticography.