Appendicitis in children: color Doppler sonography.

abstract：:Photochromic lenses which undergo a change in density with varying intensities of sunlight have been incorporated into routine eyeglasses. Laboratory tests have shown that glasses of this type do not decrease the visual acuity of the radiologist. ...

journal_title：Radiology

authors： Balter S,Janower ML

更新日期：1975-08-01 00:00:00

abstract：:A metastatic tumor in the right ventricle was clearly visualized using two-dimensional echocardiography. The location, size, and mobility of the tumor were easily demonstrated. Two-dimensional echocardiography is superior to M-mode echocardiography in such cases. ...

journal_title：Radiology

authors： Jaffe CC,Kelley MJ,Taunt KA

更新日期：1978-11-01 00:00:00

abstract：PURPOSE:To assess relevant parameters for the minimally invasive elimination of breast tumors by using a selective application of magnetite and exposure of the breast to an alternating magnetic field. MATERIALS AND METHODS:The specific absorption rate (SAR) of different magnetite samples was determined calorimetricall...

journal_title：Radiology

authors： Hilger I,Andrä W,Hergt R,Hiergeist R,Schubert H,Kaiser WA

更新日期：2001-02-01 00:00:00

abstract：PURPOSE:To determine the patterns of dynamic enhancement of normal spinal bone marrow in adults at gadolinium-enhanced magnetic resonance (MR) imaging and the changes that occur with aging. MATERIALS AND METHODS:Dynamic contrast material-enhanced MR imaging of the thoracolumbar spine was performed in 71 patients. The ...

journal_title：Radiology

authors： Montazel JL,Divine M,Lepage E,Kobeiter H,Breil S,Rahmouni A

更新日期：2003-12-01 00:00:00

abstract：:The abdominal computed tomographic (CT) scans from 61 patients with biopsy-proved Helicobacter (formerly Campylobacter) pylori gastritis were retrospectively reviewed. The CT scans were interpreted on the basis of the original report of the findings at CT examination and without knowledge of the results of biopsy. Of ...

journal_title：Radiology

authors： Urban BA,Fishman EK,Hruban RH

更新日期：1991-06-01 00:00:00

abstract：:The purpose of this study was to develop an automated scheme to facilitate detection of localized ground-glass opacity (GGO) in the lung at computed tomography (CT). Institutional review board approval and informed consent were not required. Two radiologists reviewed CT images from 14 patients (five men, nine women) w...

journal_title：Radiology

authors： Kim KG,Goo JM,Kim JH,Lee HJ,Min BG,Bae KT,Im JG

更新日期：2005-11-01 00:00:00

abstract：:A low-attenuation region around the peripheral portal tracts (periportal collar) was noted on 13 of 43 computed tomographic studies obtained in 17 patients who had undergone 20 orthotopic liver transplantations. This region was then correlated with acute liver transplant rejection. The periportal collar as a sign of r...

journal_title：Radiology

authors： Wechsler RJ,Munoz SJ,Needleman L,Kurtz AB,Miller CL,Yang SL,Maddrey WC,Jarrell BE

更新日期：1987-10-01 00:00:00

abstract：PURPOSE:To analyze the effect of the 1991 Maryland legislative mandate of screening mammography benefits. MATERIALS AND METHODS:Claims submitted between January 1991 and December 1993 for outpatient mammograms obtained in women covered under Blue Cross Blue Shield of Maryland insurance indemnity contracts were analyze...

journal_title：Radiology

authors： Dans PE,Wright AT

更新日期：1996-03-01 00:00:00

abstract：:Two patients with pneumothorax had ventilation-perfusion studies to rule out the possibility of pulmonary embolism; the presence of air in the pleural space was not known to the authors when the study was analyzed. A typical ventilatory pattern characterized by small volume difference at total lung capacity followed b...

journal_title：Radiology

authors： Dhekne RD,Burdine JA

更新日期：1978-10-01 00:00:00

abstract：PURPOSE:To compare non-contrast-enhanced computed tomography (CT) and intravenous urography (IVU) in the evaluation of patients who present with acute flank pain and in whom ureteric obstruction is suspected. MATERIALS AND METHODS:The findings at non-contrast-enhanced CT and IVU in 20 patients with acute flank pain we...

journal_title：Radiology

authors： Smith RC,Rosenfield AT,Choe KA,Essenmacher KR,Verga M,Glickman MG,Lange RC

更新日期：1995-03-01 00:00:00

abstract：:Differentiation of osteomyelitis from cellulitis or septic arthritis can be difficult. The radiological examination often does not have the characteristic features. Seventy of 71 children with osteomyelitis had focal areas of increased radioactivity at the site of the infection. The addition of "blood pool" images aid...

journal_title：Radiology

authors： Gilday DL,Paul DJ,Paterson J

更新日期：1975-11-01 00:00:00

abstract：:In a study of 62 musculoskeletal neoplasms, computed tomography contributed little to establishing tissue diagnosis. Its primary value lay in the assessment of intraosseous and/or extraosseous extent of disease. CT also established the presence or absence of disease in a small number of cases with clinically questiona...

journal_title：Radiology

authors： deSantos LA,Goldstein HM,Murray JA,Wallace S

更新日期：1978-07-01 00:00:00

abstract：:The sonographic records of 27 children who underwent a Cohen ureteroneocystostomy were reviewed. In 13 children (48%) sonograms demonstrated an echogenic, nonacoustically shadowing structure at or just above the trigone that was fixed in position within the bladder wall and covered by intact mucosa. This constellation...

journal_title：Radiology

authors： Mezzacappa PM,Price AP,Kassner EG,Haller JO,Glassberg KI

更新日期：1987-12-01 00:00:00

abstract：:Background Intracranial atherosclerosis is an important cause of ischemic stroke and is associated with several vascular risk factors. Current imaging is mainly based on the assessment of luminal narrowing rather than abnormalities in the vessel wall. Purpose To investigate the relationship between vascular risk facto...

journal_title：Radiology

authors： Lindenholz A,van der Kolk AG,van der Schaaf IC,van der Worp HB,Harteveld AA,Dieleman N,Bots ML,Hendrikse J

更新日期：2020-04-01 00:00:00

abstract：PURPOSE:To assess whether using magnetic resonance (MR) imaging combined with computational fluid dynamics (CFD) could reveal changes in common carotid artery (CCA) flow and wall shear stress (WSS) that might contribute to differences in CCA remodeling between amlodipine, a calcium channel blocker, and lisinopril, an a...

journal_title：Radiology

authors： Ariff BB,Glor FP,Crowe L,Xu XY,Vennart W,Firmin DN,Thom SM,Hughes AD

更新日期：2010-12-01 00:00:00

abstract：:The ability of magnetic resonance (MR) imaging to detect and distinguish various stages of obstruction in the canine kidney was investigated. MR images were obtained at acute, subacute, and chronic stages of experimentally produced hydronephrosis. The renal cortex was distinguished from the renal medulla in the normal...

journal_title：Radiology

authors： Thickman D,Kundel H,Biery D

更新日期：1984-07-01 00:00:00

abstract：:Background Several changes have been made to the revised 2017 international consensus guidelines for management of pancreatic intraductal papillary mucinous neoplasms (IPMNs). However, the diagnostic performance is yet to be verified. Purpose To evaluate the revised guidelines for predicting malignant potential of pan...

journal_title：Radiology

authors： Lee JE,Choi SY,Min JH,Yi BH,Lee MH,Kim SS,Hwang JA,Kim JH

更新日期：2019-10-01 00:00:00

abstract：PURPOSE:To evaluate the effects of alterations in the volume of contrast material on liver enhancement. MATERIALS AND METHODS:Thirty patients underwent repeat computed tomographic (CT) examinations within 6 months, the first with either 100, 150, or 180 mL of nonionic contrast material (2 mL/sec). In the second, only ...

journal_title：Radiology

authors： Chambers TP,Baron RL,Lush RM

更新日期：1994-11-01 00:00:00

abstract：:Renal failure induced by intravenous iodinated contrast media is a frequent medical problem. While such cases are generally reported first by the clinician, the phenomenon can be seen even earlier by the radiologist. An abnormally persistent nephrogram is a sign of abnormal clearance, which in turn should alert the ph...

journal_title：Radiology

authors： Older R

更新日期：1979-05-01 00:00:00

abstract：:During a 5-year period, 11 children were identified as having traumatic atlanto-occipital dislocation injury on the basis of clinical and radiographic findings. Radiographic criteria including the distance between the tip of the dens and the basion (DB distance), the BC/OA ratio (ratio of the distance between the basi...

journal_title：Radiology

authors： Bulas DI,Fitz CR,Johnson DL

更新日期：1993-07-01 00:00:00

abstract：:Digital subtraction laryngography was used to evaluate laryngeal function in 8 patients: 4 with normal larynxes and 4 with laryngeal disease. Subtracted digital images provided a dynamic display of the extent and symmetry of vocal cord excursions and pyriform sinus inflation, and the vocal cord resting position was al...

journal_title：Radiology

authors： Brown BM,Enzmann DR,Hopp ML,Castellino RA

更新日期：1983-06-01 00:00:00

abstract：PURPOSE:To investigate the effect of different iodine concentrations of contrast material on aortic and hepatic enhancement and the detectability of hypervascular hepatocellular carcinoma (HCC) with multi-detector row computed tomography (CT) and a uniphasic contrast material injection technique. MATERIALS AND METHODS...

journal_title：Radiology

authors： Awai K,Takada K,Onishi H,Hori S

更新日期：2002-09-01 00:00:00

abstract：UNLABELLED:The performance of a diagnostic test is often expressed in terms of sensitivity and specificity compared with the reference standard. Calculations of sensitivity and specificity commonly involve multiple observations per patient, which implies that the data are clustered. Whether analysis of sensitivity and ...

journal_title：Radiology

authors： Genders TS,Spronk S,Stijnen T,Steyerberg EW,Lesaffre E,Hunink MG

更新日期：2012-12-01 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：:The imaging performance of new high-strip-density (HSD) grids having 57 lines/cm was compared with that of conventional low-strip-density (LSD) grids having 33 or 40 lines/cm. The unique advantage of HSD grids is that, under most standard radiographic conditions, the grid lines are not noticeable on the final image, e...

journal_title：Radiology

authors： Doi K,Frank PH,Chan HP,Vyborny CJ,Makino S,Iida N,Carlin M

更新日期：1983-05-01 00:00:00

abstract：:Background Existing guidelines are inconsistent regarding the indications for staging brain MRI in patients with newly diagnosed, early-stage non-small cell lung cancer (NSCLC). Purpose To evaluate the diagnostic yield of staging brain MRI in the initial evaluation of lung cancer. Materials and Methods This retrospect...

journal_title：Radiology

authors： Kim M,Suh CH,Lee SM,Kim HC,Aizer AA,Yanagihara TK,Bai HX,Guenette JP,Huang RY,Kim HS

更新日期：2020-11-01 00:00:00

abstract：:Four patients with proved osteopetrosis (three with the infantile malignant form and one with the benign form) were examined with magnetic resonance imaging at 1.5 T. All patients were studied in the coronal and sagittal planes using both short and long repetition time/echo time sequences. The infantile malignant form...

journal_title：Radiology

authors： Rao VM,Dalinka MK,Mitchell DG,Spritzer CE,Kaplan F,August CS,Axel L,Kressel HY

更新日期：1986-10-01 00:00:00

abstract：PURPOSE:To prospectively assess the potential of noninvasive diffusion-weighted magnetic resonance (MR) imaging to depict changes in microperfusion and diffusion in patients with acute unilateral ureteral obstruction. MATERIALS AND METHODS:The local ethics committee approved the study protocol. Informed consent was ob...

journal_title：Radiology

authors： Thoeny HC,Binser T,Roth B,Kessler TM,Vermathen P

更新日期：2009-09-01 00:00:00

abstract：PURPOSE:To evaluate fluid-attenuated inversion-recovery (FLAIR) magnetic resonance (MR) imaging in a blinded reader study for the detection of proved subarachnoid space (SAS) disease. MATERIALS AND METHODS:FLAIR MR imaging was performed in 62 patients (21 with proved SAS or meningeal disease) and 41 control patients. ...

journal_title：Radiology

authors： Singer MB,Atlas SW,Drayer BP

更新日期：1998-08-01 00:00:00

abstract：PURPOSE:To review the mammographic features of screening interval breast cancers and to compare the tumor size, histologic grade, and lymph node involvement with those in screening-detected and unscreened symptomatic cancers. MATERIALS AND METHODS:Screening mammography was performed in 72,773 women aged 50-64 years. N...

journal_title：Radiology

authors： Burrell HC,Sibbering DM,Wilson AR,Pinder SE,Evans AJ,Yeoman LJ,Elston CW,Ellis IO,Blamey RW,Robertson JF

更新日期：1996-06-01 00:00:00