-
[show abstract]
[hide abstract]
ABSTRACT: OBJECTIVE: Our study was aimed at review of the radiologic findings on oncocytic neoplasms to identify the features that differentiate these tumors from other adrenal neoplasms. CONCLUSION: Benign and malignant oncocytic neoplasms could not be differentiated on the basis of the CT and MRI criteria used for differentiating adrenal cortical adenoma from carcinoma. Oncocytic neoplasms should be considered in the differential diagnosis of indeterminate adrenal tumors.
American Journal of Roentgenology 03/2011; 196(3):592-6. · 2.78 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Intestinal transplantation is carried out in only a handful of centers in the world. However, patients with such transplantation may be seen at almost any institution and radiologists should be familiar with the expected normal anatomy and complications of intestinal transplantation and its variants. In this paper, we discuss the anatomy and complications following intestinal and multivisceral transplantations. We review the literature and present the findings in a cohort of 46 patients who underwent these procedures at our institution. It is important not to misinterpret the normal adaptation of the transplanted intestine for disease. Some of the complications, including infections, vascular complications, and recurrent tumor, are conclusively diagnosed on imaging studies. Imaging studies may raise the diagnosis of complications such as rejection, graft-versus-host disease, posttransplant lymphoproliferative disease, and sclerosing peritonitis.
Abdominal Imaging 01/2011; 36(4):382-9. · 1.73 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Enteric drainage is now the preferred method of pancreatic transplantation. This technique results in long- term good control of diabetes. In this paper, we discuss the postoperative radiological anatomy and complications.
Abdominal Imaging 10/2006; · 1.73 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: OBJECTIVE: The objective of our study was to differentiate the CT findings of gelatin bioabsorbable sponges used as hemostatic agents from postoperative abdominal abscess. CONCLUSION: Gelatin absorbable sponge may mimic a postoperative abscess on CT. Findings that may help differentiate the hemostatic agent from abscess include linear arrangement of tightly packed gas bubbles, fixed position of gas bubbles on subsequent examinations, shape, lack of air-fluid level, and lack of enhancing wall.
American Journal of Roentgenology 03/2005; 184(2):475-80. · 2.78 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Obesity is rapidly becoming the most important public health issue in USA and Europe. Roux-en-Y gastric bypass is now established as the gold standard for treating intractable morbid or super obesity. We reviewed the imaging findings following this surgery in 234 patients. In this pictorial essay we present the CT and upper gastrointestinal contrast study appearances of the expected postoperative anatomy as well as a range of abdominal complications. The complications are classified into leaks, fistula and obstruction. Postoperative gastric outlet and small bowel obstruction can be caused by anastomotic stenosis, mesocolic tunnel stenosis, adhesions, stomal ulcer, obturation, intussusception and internal or external hernia. Small bowel obstruction may be of a simple, closed loop and/or strangulating type. The radiologist should be able to diagnose the type and possible cause of obstruction.
European Radiology 03/2005; 15(2):254-62. · 3.22 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Magnetic resonance (MR) imaging at 3.0 T offers an improved signal-to-noise ratio compared with that at 1.5 T. However, the physics of high field strength also brings disadvantages, such as increases in the specific absorption rate, in magnetic field inhomogeneity effects, and in susceptibility artifacts. The use of 3.0-T MR imaging for abdominal evaluations, in particular, has lagged behind that for other applications because of the difficulty of imaging a large volume while compensating for respiratory motion. At a minimum, abdominal MR imaging at 3.0 T requires modifications in the pulse sequences used at 1.5 T. Such modifications may include a decrease in the flip angle used for refocusing pulses and an increase in the repetition time for T1-weighted acquisitions. In addition, parallel imaging and other techniques (hyper-echo sequences, transition between pseudo steady states) may be used to maintain a high signal-to-noise ratio while decreasing acquisition time and minimizing the occurrence of artifacts on abdominal MR images.
Radiographics 27(5):1433-44; discussion 1462-4. · 2.85 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Fetal magnetic resonance imaging (MRI) can be used as a problem-solving tool when ultrasonic findings are equivocal. The role of fetal MRI has increased as obstetricians become aware of its potential and in utero therapy for anomalies becomes increasingly sophisticated. In this pictorial essay, we present a wide range of anomalies diagnosed or confirmed using MRI and discuss findings that help in the differential diagnosis.
Journal of Computer Assisted Tomography 29(4):487-98. · 1.22 Impact Factor
