Vertebral scalloping in neurofibromatosis.

abstract：:A retrospective review of 20 cases of endoprosthesis occlusion in 17 patients was performed. The average length of stent patency before occlusion was 3.7 months. Clinical manifestations included one or a combination of the following: cholangitis (n = 17), jaundice (n = 9), and leakage of bile or purulent material from...

journal_title：Radiology

authors： Lee MJ,Mueller PR,Saini S,Morrison MC,Brink JA,Hahn PF

更新日期：1990-08-01 00:00:00

abstract：:The lateral C1-2 puncture approach for myelography is a modification of the technique for percutaneous radiofrequency cervical cordotomy. Positioning of the needle in the posterior, rather than anterior, one third of the canal avoids injury to anomalous vertebral artery branches which lie in the anterior half of the n...

journal_title：Radiology

authors： Rice JF,Bathia AL

更新日期：1979-09-01 00:00:00

abstract：:This case series describes the radiologic appearances of gynecomastoid hyperplasia of the breast in our experience. The clinical histories, breast images, and histopathologic findings in six women were reviewed. At mammography, there was no abnormality in two women, an enlarging asymmetric density in three women, and ...

journal_title：Radiology

authors： Selland DL,Korbin CD,Lester SC,Lerner MH,Gulizia JA,Kaelin CM,Meyer JE

更新日期：2000-02-01 00:00:00

abstract：:The diagnosis of pulmonary sequestration has traditionally relied on angiographic demonstration of a systemic artery to the sequestered lung tissue. Rarely, extralobar sequestration can be associated with tension hydrothorax, which in the past has invariably led to fetal hydrops and death. The authors report the cases...

journal_title：Radiology

authors： Hernanz-Schulman M,Stein SM,Neblett WW,Atkinson JB,Kirchner SG,Heller RM,Merrill WH,Fleischer AC

更新日期：1991-09-01 00:00:00

abstract：:In a patient with choledocholithiasis, a duodenal diverticulum precluded endoscopic retrograde bile duct cannulation. A transhepatic catheter was used to opacify the bile ducts and to guide the endoscopic sphincterotome into the major duodenal papilla. Because limited sphincterotomy did not allow extraction or spontan...

journal_title：Radiology

authors： Becker CD,Fache JS,Gibney RG,Scudamore CH,Burhenne HJ

更新日期：1987-11-01 00:00:00

abstract：:The value of computed tomography (CT) in determining the cause of obstructive jaundice in 67 proved cases is described. The presence of stones, the level of obstruction, the relative size of the ringlike structures produced by the dilated bile duct, and the shape of the distal visualized ring have proved to be the mos...

journal_title：Radiology

authors： Pedrosa CS,Casanova R,Lezana AH,Fernandez MC

更新日期：1981-06-01 00:00:00

abstract：:Thrombosed arteriovenous malformations (AVMs) in children are rare lesions that may present with headaches or a seizure disorder. Thirteen patients (4 months to 21 years of age) with this lesion were examined with computed tomography (CT). In 11 patients surgical confirmation was obtained, and the other two patients w...

journal_title：Radiology

authors： Mitnick JS,Pinto RS,Lin JP,Rose H,Lieberman A

更新日期：1984-02-01 00:00:00

abstract：:In a series of 526 consecutive, unprepared patients examined by ultrasound, the gallbladder was visualized in 507 (96%). The average wall thickness was 2 mm or less in 97% of asymptomatic subjects without cholelithiasis and 3 mm or greater in 45% of those with choletithiasis. Pathologic correlation of increased thickn...

journal_title：Radiology

authors： Finberg HJ,Birnholz JC

更新日期：1979-12-01 00:00:00

abstract：:To improve the efficiency of magnetic resonance imaging of the total spine, the authors developed a coil holder and marker system to accurately localize the level of the spine imaged. The patient's external auditory canal and the alignment light on the imager are lined up with marks on the coil holder. The spine is th...

journal_title：Radiology

authors： Abrahams JJ,Lange RC

更新日期：1989-09-01 00:00:00

abstract：:History A 53-year-old man experienced headache and double vision that progressed over 1 year. After a traumatic fall, he was hospitalized, and proptosis was identified at physical examination. Laboratory tests were remarkable for leukocytosis. Hematocrit level, thyroid stimulating hormone level, autoimmune antibody le...

journal_title：Radiology

authors： Mamlouk MD,Aboian MS,Glastonbury CM

更新日期：2017-09-01 00:00:00

abstract：:The chest radiographs of asthmatic patients in an emergency room setting over a four-year period were reviewed. A total of 997 radiographs was reviewed; radiographic findings were compared with history and clinical data. In adults 2.2% of the radiographs were abnormal; in children 13%. It is concluded that a chest rad...

journal_title：Radiology

authors： Zieverink SE,Harper AP,Holden RW,Klatte EC,Brittain H

更新日期：1982-10-01 00:00:00

abstract：PURPOSE:To evaluate imaging utilization trends in patients with acute pancreatitis (AP) and to assess independent predictors of radiology usage in relation to patient outcomes. MATERIALS AND METHODS:Institutional review board approval was obtained for this HIPAA-compliant study; written informed consent was waived. AP...

journal_title：Radiology

authors： Mortele KJ,Ip IK,Wu BU,Conwell DL,Banks PA,Khorasani R

更新日期：2011-01-01 00:00:00

abstract：PURPOSE:To evaluate the diagnostic performance of coronary computed tomographic (CT) angiography for the diagnosis of mitral valve prolapse (MVP). MATERIALS AND METHODS:The retrospective case-controlled multicenter study protocol was approved by the institutional review boards. The U.S. part of the study was HIPAA com...

journal_title：Radiology

authors： Feuchtner GM,Alkadhi H,Karlo C,Sarwar A,Meier A,Dichtl W,Leschka S,Blankstein R,Gruenenfelder J,Stolzmann P,Cury RC

更新日期：2010-02-01 00:00:00

abstract：:Five hundred celiac angiograms were reviewed to evaluate the frequency of clinically significant variations in the origin of the left gastric artery. In 13 of 500 cases, the left gastric artery arose anomalously most often as a direct branch of the aorta; in 14 of 500 cases, the left gastric artery primarily supplied ...

journal_title：Radiology

authors： Naidich JB,Naidich TP,Sprayregen S,Hyman RA,Pudlowski RM,Stein HL

更新日期：1978-03-01 00:00:00

abstract：:An angiographic system capable of simultaneous biplane stereoscopic magnification cerebral angiography was evaluated. Stereoscopic imaging improved the morphologic depiction of aneurysms and of arteriovenous malformations. In a series of 357 patients, procedure time was reduced because the initial biplane stereoscopic...

journal_title：Radiology

authors： Kleefield J,O'Reilly GV,Barsotti JB,Brooks ML

更新日期：1987-11-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate the sensitivity and reproducibility of a computer-aided detection (CAD) system applied to serial digital mammograms obtained in women with breast cancer, with histologic analysis as the reference standard. MATERIALS AND METHODS:This study was institutional review board approved, and...

journal_title：Radiology

authors： Kim SJ,Moon WK,Cho N,Cha JH,Kim SM,Im JG

更新日期：2008-01-01 00:00:00

abstract：PURPOSE:To evaluate toxicity and efficacy of endobronchial brachytherapy with high-dose-rate (HDR) after-loading of iridium-192 for recurrent endobronchial lesions. MATERIALS AND METHODS:From 1988 to 1993, 81 patients with lung cancer previously treated with external beam radiation therapy were treated with palliative...

journal_title：Radiology

authors： Delclos ME,Komaki R,Morice RC,Allen PK,Davis M,Garden A

更新日期：1996-10-01 00:00:00

abstract：:A modified transfemoral technique for testicular venography and occlusion of the testicular vein (TV) was used to treat 30 patients with a total of 43 varicoceles (17 left-sided and 13 bilateral). Occlusion was satisfactory in all left varicoceles and 90% of right varicoceles. This coaxial technique facilitates subsel...

journal_title：Radiology

authors： Berkman WA,Price RB,Wheatley JK,Fajman WA,Sones PJ,Casarella WJ

更新日期：1984-04-01 00:00:00

abstract：:An International Symposium was held in Atlanta in 1992 to present the state of the art of diagnostic evaluation and management of acute pancreatitis and to agree on an acceptable series of clinical definitions for classifying the disease and its complications. The symposium was composed of 40 internationally recognize...

journal_title：Radiology

authors： Balthazar EJ,Freeny PC,vanSonnenberg E

更新日期：1994-11-01 00:00:00

abstract：:The line spread function (LSF) and modulation transfer function (MTF) of 9 rare-earth screen/film systems were measured and compared with those of two fast calcium tungstate systems, using double-emulsion films sandwiched between two screens and mounted in regular cassettes. The LSFs were found to fit exponential func...

journal_title：Radiology

authors： Arnold BA,Eisenberg H,Bjärngard BE

更新日期：1976-11-01 00:00:00

abstract：:Relaxation times (T1 and T2) were measured in vivo in mongrel dogs at fields of 0.3, 0.5, 1.0, 1.35, and 1.5 tesla (T). T1 was measured using nine values of inversion time ranging from 10 to 1,280 msec. T2 was measured with a four-point multiple spin-echo sequence. Relaxation times were calculated for muscle, kidney c...

journal_title：Radiology

authors： Johnson GA,Herfkens RJ,Brown MA

更新日期：1985-09-01 00:00:00

abstract：:A simple device is described that can reduce personnel exposure from scatter radiation by up to 75%. The device consists of an oblong piece of shielding (0.75-mm lead equivalent) that is taped to the side of the patient during percutaneous renal stone removal and other interventional procedures. Contrary to other shie...

journal_title：Radiology

authors： Young AT,Morin RL,Hunter DW,Nelson KL,Cardella JF,Castaneda-Zuniga WR,Amplatz K

更新日期：1986-06-01 00:00:00

abstract：PURPOSE:To differentiate prostate cancers of different histopathologic grades with dynamic gadolinium-enhanced magnetic resonance (MR) imaging. Results with a conventional small-molecular contrast medium (CM) were compared to those with a prototypic macromolecular CM. MATERIALS AND METHODS:High- and low-grade tumors, ...

journal_title：Radiology

authors： Gossmann A,Okuhata Y,Shames DM,Helbich TH,Roberts TP,Wendland MF,Huber S,Brasch RC

更新日期：1999-10-01 00:00:00

abstract：:One hundred thirty-three cervical spine radiographs of 50 patients with rheumatoid arthritis were examined. The patients were a representative random sample chosen from among 675 patients followed up for more than 10 years. The frequency of occurrence for each radiographic finding was correlated with the duration of r...

journal_title：Radiology

authors： Wolfe BK,O'Keeffe D,Mitchell DM,Tchang SP

更新日期：1987-10-01 00:00:00

abstract：PURPOSE:To determine the prevalence of karyotype abnormalities in fetuses with prenatally detected spina bifida and evaluate the ability of prenatal sonography to enable prediction of chromosomal abnormalities. MATERIALS AND METHODS:Sonograms from 63 fetuses with prenatally detected spina bifida were reviewed, and ass...

journal_title：Radiology

authors： Babcook CJ,Goldstein RB,Filly RA

更新日期：1995-02-01 00:00:00

abstract：PURPOSE:To evaluate feasibility and added value of dual-energy computed tomography (CT) in diagnosis of pulmonary embolism (PE). MATERIALS AND METHODS:This institutional animal experimental committee-approved study was performed in accordance with animal care guidelines. Eight New Zealand rabbits underwent standard un...

journal_title：Radiology

authors： Zhang LJ,Zhao YE,Wu SY,Yeh BM,Zhou CS,Hu XB,Hu QJ,Lu GM

更新日期：2009-07-01 00:00:00

abstract：PURPOSE:To investigate the feasibility of breast tissue characterization in terms of water, lipid, and protein contents with a spectral computed tomographic (CT) system based on a cadmium zinc telluride (CZT) photon-counting detector by using postmortem breasts. MATERIALS AND METHODS:Nineteen pairs of postmortem breas...

journal_title：Radiology

authors： Ding H,Klopfer MJ,Ducote JL,Masaki F,Molloi S

更新日期：2014-09-01 00:00:00

abstract：PURPOSE:To investigate in vivo the feasibility of using magnetic resonance (MR) imaging-derived temperature and thermal dose measurements to find the threshold of thermal tissue damage. MATERIALS AND METHODS:Sonications were delivered in rabbit thigh muscles at varying powers. Temperature-sensitive MR images obtained ...

journal_title：Radiology

authors： McDannold NJ,King RL,Jolesz FA,Hynynen KH

更新日期：2000-08-01 00:00:00

abstract：:Positron emission tomography (PET) with fluorine-18 fluoro-2-deoxy-D-glucose (FDG) was performed in 19 patients referred for clinical evaluation of soft-tissue masses. These patients had 20 different lesions and had been evaluated previously with computed tomography (CT) and/or magnetic resonance (MR) imaging. The dia...

journal_title：Radiology

authors： Griffeth LK,Dehdashti F,McGuire AH,McGuire DJ,Perry DJ,Moerlein SM,Siegel BA

更新日期：1992-01-01 00:00:00

abstract：:Eleven patients who had lung tumors associated with obstructive pneumonitis and who failed to yield diagnostic material at conventional bronchoscopic biopsy underwent real-time ultrasonographic (US) studies and US-guided aspiration biopsy. Sonography of the consolidated lung showed a wedge-shaped hypoechoic lesion con...

journal_title：Radiology

authors： Yang PC,Luh KT,Wu HD,Chang DB,Lee LN,Kuo SH,Yang SP

更新日期：1990-03-01 00:00:00