CT imaging of colitis.

abstract：PURPOSE:To evaluate, by using computer image analysis, the mammographic density patterns of women with germ-line mutations in BRCA1 and BRCA2 genes in comparison with those of women at low risk of developing breast cancer. MATERIALS AND METHODS:Mammograms from 30 carriers of BRCA1 and BRCA2 mutations and from 142 low-...

journal_title：Radiology

authors： Huo Z,Giger ML,Olopade OI,Wolverton DE,Weber BL,Metz CE,Zhong W,Cummings SA

更新日期：2002-11-01 00:00:00

abstract：PURPOSE:To compare the accuracy of a fluid-attenuated inversion-recovery (FLAIR) sequence with that of a conventional double spin-echo (SE) sequence in the identification of increased signal intensity of the hippocampus in mesial temporal sclerosis (MTS). MATERIALS AND METHODS:Three blinded reviewers independently gra...

journal_title：Radiology

authors： Jack CR Jr,Rydberg CH,Krecke KN,Trenerry MR,Parisi JE,Rydberg JN,Cascino GD,Riederer SJ

更新日期：1996-05-01 00:00:00

abstract：PURPOSE:To prospectively evaluate the technical feasibility of both high-spatial-resolution and time-resolved contrast material-enhanced magnetic resonance (MR) angiography of the pulmonary circulation at 3.0 T. MATERIALS AND METHODS:All examinations were HIPAA compliant. After institutional review board approval and ...

journal_title：Radiology

authors： Nael K,Michaely HJ,Kramer U,Lee MH,Goldin J,Laub G,Finn JP

更新日期：2006-09-01 00:00:00

abstract：PURPOSE:To quantitatively characterize early emphysematous changes in the lung microstructure of current and former smokers with noninvasive helium 3 ((3)He) lung morphometry and to compare these results with the clinical standards, pulmonary function testing (PFT) and low-dose computed tomography (CT). MATERIALS AND ...

journal_title：Radiology

authors： Quirk JD,Lutey BA,Gierada DS,Woods JC,Senior RM,Lefrak SS,Sukstanskii AL,Conradi MS,Yablonskiy DA

更新日期：2011-09-01 00:00:00

abstract：:Two cases of vertebral sarcoidosis in pediatric patients are presented. All such patients reported have been black, 13-15 years old, and have a history of back pain. Radiographs of the involved vertebrae show primarily lytic destruction with sclerotic borders in some of the lesions. Fungal infections, tuberculosis, py...

journal_title：Radiology

authors： Stump D,Spock A,Grossman H

更新日期：1976-10-01 00:00:00

abstract：:The sequelae of disk degeneration are among the leading causes of functional incapacity in both sexes and are a common source of chronic disability in the working years. Disk degeneration involves structural disruption and cell-mediated changes in composition. Mechanical, traumatic, nutritional, and genetic factors al...

journal_title：Radiology

authors： Modic MT,Ross JS

更新日期：2007-10-01 00:00:00

abstract：PURPOSE:To evaluate characteristics of delayed ischemic stroke after stent-assisted coil placement in cerebral aneurysms and to determine the optimal duration of dual antiplatelet therapy for its prevention. MATERIALS AND METHODS:This retrospective study was approved by the institutional review board, and the requirem...

journal_title：Radiology

authors： Hwang G,Kim JG,Song KS,Lee YJ,Villavicencio JB,Suroto NS,Park NM,Park SJ,Jeong EA,Kwon OK

更新日期：2014-10-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate the immediate and long-term clinical results, as well as the angiographic results, of occlusion of middle cerebral artery (MCA) berry aneurysms with coils. MATERIALS AND METHODS:This retrospective study had institutional review board approval, and informed consent was obtained. One ...

journal_title：Radiology

authors： Iijima A,Piotin M,Mounayer C,Spelle L,Weill A,Moret J

更新日期：2005-11-01 00:00:00

abstract：:Five patients with pyarthrosis complicating rheumatoid arthritis are described. Only minimal clinical signs may be seen in such patients, making accurate diagnosis of this occasional complication difficult. Roentgenographic abnormalities include a rapidly enlarging joint effusion and progressive cartilage and bone des...

journal_title：Radiology

authors： Resnick D

更新日期：1975-03-01 00:00:00

abstract：PURPOSE:To develop a bilateral femoral magnetic resonance (MR) angiographic examination that would include the aortic bifurcation to the ankle. MATERIALS AND METHODS:Thirty-seven patients underwent conventional angiography and the bilateral femoral MR angiographic examination. Two-dimensional time-of-flight angiograph...

journal_title：Radiology

authors： Quinn SF,Demlow TA,Hallin RW,Eidemiller LR,Szumowski J

更新日期：1993-10-01 00:00:00

abstract：PURPOSE:To determine the characteristics and trends of the original articles published in two major American radiology journals, AJR American Journal of Roentgenology (AJR) and Radiology, between 2001 and 2010. MATERIALS AND METHODS:This was a retrospective bibliometric analysis that did not involve human subjects and...

journal_title：Radiology

authors： Lim KJ,Yoon DY,Yun EJ,Seo YL,Baek S,Gu DH,Yoon SJ,Han A,Ku YJ,Kim SS

更新日期：2012-09-01 00:00:00

abstract：:Numerous in vitro studies have found that clot formation may occur when blood is mixed directly with nonionic low-osmolality contrast media during angiographic procedures because of activation of hemostasis in the catheter; ionic contrast media, on the other hand, inhibit clot formation. Thirty patients were injected ...

journal_title：Radiology

authors： Casalini E

更新日期：1992-06-01 00:00:00

abstract：:To enhance the versatility of the short-tau inversion-recovery (STIR) sequences, the authors determined a range of repetition time (TR) and inversion time (TI) combinations that suppress signal intensity from fat by study of both patient and phantom images. To make fast STIR images, variations in the following pulsing...

journal_title：Radiology

authors： Fleckenstein JL,Archer BT,Barker BA,Vaughan JT,Parkey RW,Peshock RM

更新日期：1991-05-01 00:00:00

abstract：PURPOSE:To describe the diaphragm muscle slip sign, a previously unreported finding of pneumoperitoneum on plain radiographs. MATERIALS AND METHODS:Diaphragmatic muscle slips were observed on supine plain abdominal (n = 6) or recumbent frontal chest (n = 3) radiographs in nine patients. Computed tomographic (CT) confi...

journal_title：Radiology

authors： Cho KC,Baker SR

更新日期：1997-05-01 00:00:00

abstract：:A double-blind, randomized study was conducted in 170 patients to compare the effects of two hypertonic contrast media in phlebography of the leg: one was ionic [methylglucamine metrizoate (Isopaque Cerebral, 280 mg I/mI)] and the other nonionic [metrizamide (Amipaque, 280 mg I/mI)]. Ninety patients who showed no veno...

journal_title：Radiology

authors： Laerum F,Holm HA

更新日期：1981-09-01 00:00:00

abstract：:Radiographs of 45 patients with evidence of acute unilateral ureteral obstruction at intravenous urography, obtained at least 24 hours after injection of contrast material, were retrospectively studied. Vicarious contrast material excretion (VCME) as evidence by gallbladder opacification on delayed radiographs was see...

journal_title：Radiology

authors： Dyer RB,Gilpin JW,Zagoria RJ,Chen MY,Case LD

更新日期：1990-12-01 00:00:00

abstract：PURPOSE:To determine the radiographic appearance and features of corrosion in U.S. coins exposed to gastric acid. MATERIALS AND METHODS:Six U.S. copper-based pre-1982 pennies, 12 zinc-based post-1982 pennies, a quarter, a nickel, and a dime were exposed to postprandial concentrations of gastric acid (0.15N HCl) for 7 ...

journal_title：Radiology

authors： O'Hara SM,Donnelly LF,Chuang E,Briner WH,Bisset GS 3rd

更新日期：1999-10-01 00:00:00

abstract：PURPOSE:To evaluate the incidence of postoperative complications in liver donors and the efficacy of interventional management for treating these complications. MATERIALS AND METHODS:The study included 386 consecutive donors: 219 donors underwent right lobectomy or segmentectomy and 167 donors underwent left lobectomy...

journal_title：Radiology

authors： Lee SY,Ko GY,Gwon DI,Song HY,Lee SG,Yoon HK,Sung KB

更新日期：2004-02-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate the incidence of and risk factors for pneumothorax, pleural effusion, and chest tube placement for pneumothorax after radiofrequency (RF) ablation of lung tumors. MATERIALS AND METHODS:Institutional review board approval was obtained, with waiver of informed consent. This retrospect...

journal_title：Radiology

authors： Hiraki T,Tajiri N,Mimura H,Yasui K,Gobara H,Mukai T,Hase S,Fujiwara H,Iguchi T,Sano Y,Shimizu N,Kanazawa S

更新日期：2006-10-01 00:00:00

abstract：:Cranial magnetic resonance (MR) images were prospectively obtained in 74 human immunodeficiency virus (HIV)-seropositive subjects, all of whom had undergone MR imaging 24-42 months earlier. The images were interpreted by neuroradiologists blinded to the subject's clinical status and were compared with the initial MR i...

journal_title：Radiology

authors： Post MJ,Berger JR,Duncan R,Quencer RM,Pall L,Winfield D

更新日期：1993-09-01 00:00:00

abstract：:The authors describe a simplified method of venography of the lower extremity which gives improved visualization of the proximal deep venous system. The technique involves high volumes of contrast material, no tourniquets, a relatively vertical, non-weight-bearing position, and passive elevation of the legs. ...

journal_title：Radiology

authors： Rampton JB,Armstrong JD Jr

更新日期：1977-06-01 00:00:00

abstract：:Although intravascular foreign bodies are routinely removed with percutaneous extraction, surgical retrieval is performed of most nonvascular foreign bodies. The authors describe six cases in which percutaneous extraction was performed for removal of nonvascular foreign bodies. These foreign bodies included an intraab...

journal_title：Radiology

authors： Nosher JL,Siegel R

更新日期：1993-06-01 00:00:00

abstract：:Various whole-body, multiple-field, electron-beam therapy techniques are analyzed. Accelerator characteristics, various dosimetric techniques, and experimental setup are described. A flattening filter was constructed which produced an uncollimated electron-beam profile (4 MeV) with a uniformity of +/- 8% across a 200-...

journal_title：Radiology

authors： Tetenes PJ,Goodwin PN

更新日期：1977-01-01 00:00:00

abstract：PURPOSE:To determine if a tiny enhancing dot is characteristic of small hemangiomas with low attenuation during the hepatic arterial phase (HAP) and portal venous phase (PVP) of two-phase spiral computed tomography (CT). MATERIALS AND METHODS:Among 249 consecutive patients with 377 hemangiomas who underwent two-phase ...

journal_title：Radiology

authors： Jang HJ,Choi BI,Kim TK,Yun EJ,Kim KW,Han JK,Han MC

更新日期：1998-08-01 00:00:00

abstract：PURPOSE:To evaluate the prognostic value of volumetric computed tomography (CT) for therapy control in patients treated with repeated transarterial chemoembolization (TACE) for hepatocellular carcinoma (HCC). MATERIALS AND METHODS:Eighty-five patients with histologically proved HCC underwent 182 TACE procedures with 5...

journal_title：Radiology

authors： Vogl TJ,Trapp M,Schroeder H,Mack M,Schuster A,Schmitt J,Neuhaus P,Felix R

更新日期：2000-02-01 00:00:00

abstract：PURPOSE:To prospectively assess the utility of perfusion computed tomography (CT) for differentiating minimal from intermediate fibrosis in treatment-naïve patients with chronic hepatitis C virus (HCV) infection. MATERIALS AND METHODS:This study was approved by the Institutional Review Board, and informed consent was ...

journal_title：Radiology

authors： Ronot M,Asselah T,Paradis V,Michoux N,Dorvillius M,Baron G,Marcellin P,Van Beers BE,Vilgrain V

更新日期：2010-07-01 00:00:00

abstract：PURPOSE:To evaluate the feasibility of micro-computed tomography (CT) for analysis of the lung fine structure and its alterations during endotoxin-induced lung injury. MATERIALS AND METHODS:Intravital perfusion-fixed rat lungs with (n = 5) and without (n = 5) endotoxin perfusion were scanned with micro-CT. Three imagi...

journal_title：Radiology

authors： Langheinrich AC,Leithäuser B,Greschus S,Von Gerlach S,Breithecker A,Matthias FR,Rau WS,Bohle RM

更新日期：2004-10-01 00:00:00

abstract：:The pulmonary manifestations of 5 biopsy-proved cases of lymphomatoid granulomatosis are discussed. Two patients had diffuse reticulonodular infiltration of the lungs, thought to represent infiltrates of lymphomatoid granulomatosis. Three had nodular densities of varying size and distribution, with radiologically norm...

journal_title：Radiology

authors： Dee PM,Arora NS,Innes DJ Jr

更新日期：1982-06-01 00:00:00

abstract：:To investigate the physiologic and histologic responses induced by the self-expanding endovascular prosthesis, rabbits subjected to a combination of high-cholesterol diet and intravascular trauma underwent stent implantation. The results were compared with those obtained with the placement of stents in the healthy aor...

journal_title：Radiology

authors： Rousseau H,Joffre F,Raillat C,Julian M,Pierragi MT,Chalabi F,Bouissou H

更新日期：1989-03-01 00:00:00

abstract：:Background Water signal contamination is a major challenge for direct ultrashort echo time (UTE) imaging of myelin in vivo because water contributes most of the signals detected in white matter. Purpose To validate a new short repetition time (TR) adiabatic inversion recovery (STAIR) prepared UTE (STAIR-UTE) sequence ...

journal_title：Radiology

authors： Ma YJ,Jang H,Wei Z,Cai Z,Xue Y,Lee RR,Chang EY,Bydder GM,Corey-Bloom J,Du J

更新日期：2020-11-01 00:00:00