Case report: percutaneous cryoablation of a small renal lesion necessitating modified lateral decubitus position.

When performing percutaneous cryoablation for renal masses, the standard patient positioning has been the prone position. We present a case in which placing the patient in a modified lateral decubitus position aided in the access of probe placement for percutaneous cryoablation.

Assessing the resectability of pancreatic carcinoma: the value of reinterpreting abdominal CT performed at other institutions.

Objective: The purpose of this study was to determine the value of reinterpreting abdominal CT performed at other institutions when assessing the resectability of pancreatic carcinoma.

Materials And Methods: Fifty-three patients (30 men, 23 women; mean age, 62 years) referred to our tertiary care institution with newly diagnosed pancreatic carcinoma had formally reinterpreted abdominal CT scans and available initial reports. CT was performed at community hospitals (n = 47), university hospitals (n = 4), an outpatient clinic (n = 1), and an imaging center (n = 1); reinterpretation was performed by university radiologists with subspecialty expertise in abdominal imaging.

Colouterine fistula: computed tomography and vaginography findings.

Colouterine fistulas are difficult to demonstrate radiologically. The authors present a case in which such a fistula was observed with computed tomography and confirmed by vaginography.

Helical computed tomography at 1.5:1 pitch reconstructed at 15-mm and 7-mm intervals for examination of patients with suspected metastatic disease.

Objective: To document the need for overlapped reconstruction when using helical computed tomography (CT) software that reconstructs 10-mm-collimation, 1.5:1-pitch images at 15-mm intervals in follow-up examination of patients with suspected metastatic disease.

Patients And Methods: Forty consecutive patients with known or suspected metastatic disease were examined with helical CT at 10-mm collimation and 1.

Renal computed tomography with 3-dimensional angiography and simultaneous measurement of plasma contrast clearance reduce the invasiveness and cost of evaluating living renal donor candidates.

Renal computed tomography (CT), 3-dimensional CT angiography (3D-CTA), and simultaneous measurement of glomerular filtration rate (GFR) by x-ray fluorescence determination of plasma contrast clearance (PCC) are alternatives to intravenous urography (IVU), renal arteriography (RA), and 24-hr urine creatinine clearance (CrCl) for evaluation of renal structure and function in living renal donor (LRD) candidates. To determine if CT, 3D-CTA, and PCC provide data comparable to IVU, RA, and CrCl, both methods were used to evaluate 23 LRD candidates. Costs were also compared.

Urologic applications of multiplanar and three-dimensional computed tomography.

The introduction of helical computed tomography (CT) has resulted in improved quality of multiplanar reformations and three-dimensional reconstructions in the chest and abdomen and has made CT angiography a clinical reality. These imaging techniques are useful for evaluating the urinary tract, adding a new dimension to its display, resulting in improved diagnosis of renal and perirenal disease. This article reviews the indications and techniques utilized for multiplanar and three-dimensional CT for urology.

Sonography of the umbilical cord.

Knowledge of the development, normal sonographic appearance, and potential abnormalities of the umbilical cord is important in fetal assessment. The umbilical cord can be visualized throughout most of gestation and is detectable sonographically soon after visualization of the fetal pole. The normal umbilical cord is 50-60 cm long and may coil as many as 40 times, usually to the left.

Effect of an inelastic aortic synthetic vascular graft on exercise hemodynamics.

This study compared aortic input impedance characteristics between patients with aortic interposition Dacron grafts placed for traumatic aortic injury and normal age-matched control subjects. All subjects were examined at rest and after treadmill exercise. Magnetic resonance imaging was conducted to rule out anatomic (stenosis) effects.

Directed and random biopsies of the prostate: indications based on combined results of transrectal sonography and prostate-specific antigen density determinations.

Objective: We studied the usefulness of transrectal sonography, prostate-specific antigen levels, and prostate-specific antigen density as indications for directed and random biopsies of the prostate in patients with possible prostatic cancer.

Materials And Methods: A total of 141 patients with increased levels of prostate-specific antigen or abnormal findings on digital rectal examination had transrectal sonography of the prostate and determination of prostate-specific antigen density. Through sonographic visualization, all patients had biopsies of possible cancerous lesions and random biopsies of regions of the prostate that appeared normal.

CT of the chest and abdomen in patients on mechanical pulmonary ventilators: quality of images made at 0.6 vs 1.0 sec.

Objective: Chest and abdominal CT scans using 1.0-sec scan times are often limited by motion in patients who are unable to hold their breath. With our scanner we can obtain images in 0.

Computed tomography diagnosis of partial anomalous pulmonary venous drainage.

A case of the rarely occurring partial anomalous pulmonary venous drainage of the right upper lobe into the azygos arch is presented. Computed tomography (CT) clearly demonstrated the abnormal vessel coursing through the right upper lobe and draining into the azygos arch.

MR imaging of the brachial plexus.

The brachial plexus is difficult to evaluate with conventional radiologic techniques, including CT. However, it is well shown by MR imaging, which has direct multiplanar imaging capability and superior soft-tissue resolution [1-4]. We present our technique for evaluating the brachial plexus, discuss the anatomy, and illustrate normal and abnormal findings.

Pancreatic plasmacytomas in a patient with multiple myeloma: CT and ultrasound findings.

Extramedullary plasmacytomas are an unusual manifestation of multiple myeloma. They occur most frequently in tissues or organs rich in reticulo-endothelial cells. Pancreatic plasmacytomas are rare, with only a few case reports in the literature.

Inferior mesenteric artery branch avulsion from blunt trauma--CT findings. Case report.

Mesenteric arterial injuries are uncommon following blunt abdominal trauma. We describe the computed tomography (CT) findings of a patient with avulsion of a branch of the inferior mesenteric artery following a low-speed motor vehicle accident.

MR imaging of the female pelvic region.

Magnetic resonance (MR) imaging is a valuable technique for noninvasive evaluation of the female pelvic region. This article presents the normal anatomy and abnormalities of the female pelvis. MR imaging may be more useful than clinical evaluation or other imaging modalities in diagnosing or staging developmental anomalies, leiomyomas, adenomyosis, endometrial or cervical carcinoma, vaginal neoplasms, ovarian cysts, endometriosis, teratomas, polycystic ovaries, or other ovarian masses.

Ultrasound of the scrotum.

High-resolution real time ultrasound of the scrotum, including gray-scale and color Doppler sonography is presented. The normal anatomy of the scrotum with sonographic correlation is reviewed. The sonographic features of scrotal pathology, including congenital, neoplastic, inflammatory, and traumatic conditions are presented.