Traumatic atlanto-occipital dislocation in children.

abstract：PURPOSE:To prospectively evaluate the effect of experience with coronary computed tomographic (CT) angiography on the capability to detect coronary stenoses of 50% or more. MATERIALS AND METHODS:The institutional review board approved the study protocol. All patients gave consent to undergo CT angiography before conve...

journal_title：Radiology

authors： Pugliese F,Hunink MG,Gruszczynska K,Alberghina F,Malagó R,van Pelt N,Mollet NR,Cademartiri F,Weustink AC,Meijboom WB,Witteman CL,de Feyter PJ,Krestin GP

更新日期：2009-05-01 00:00:00

abstract：:Possible signs of paratracheal lymphadenopathy on the posteroanterior (PA) chest radiograph were assessed in 98 patients and correlated with computed tomography (CT). The nodes were normal in size in 62 patients and enlarged (greater than 15 mm) in 36. Among the latter group, widening of the right paratracheal stripe ...

journal_title：Radiology

authors： Müller NL,Webb WR,Gamsu G

更新日期：1985-09-01 00:00:00

abstract：:Significant structural and mechanical differences exist between the titanium and stainless steel versions of the Greenfield filter (GF). The titanium GF has a longer leg length (49 mm vs 43 mm), a greater span (38.5 mm vs 28.0 mm), and a larger hook angle (41 degrees vs 23.5 degrees). In vitro tests demonstrated appro...

journal_title：Radiology

authors： Teitelbaum GP,Jones DL,van Breda A,Matsumoto AH,Fellmeth BD,Chespak LW,Barth KH

更新日期：1989-12-01 00:00:00

abstract：PURPOSE:To determine whether the addition of color Doppler ultrasonography (US) to gray-scale US can help diagnose appendicitis in children. MATERIALS AND METHODS:One hundred children with suspected appendicitis were evaluated with gray-scale and color Doppler US scanning. Color Doppler US scans were considered positi...

journal_title：Radiology

authors： Quillin SP,Siegel MJ

更新日期：1994-05-01 00:00:00

abstract：:Reference values (RVs) are recommended by the American Association of Physicists in Medicine for four radiographic projections, computed tomography, fluoroscopy, and dental radiography. RVs are used to compare radiation doses from individual pieces of radiographic equipment with doses from similar equipment assessed i...

journal_title：Radiology

authors： Gray JE,Archer BR,Butler PF,Hobbs BB,Mettler FA Jr,Pizzutiello RJ Jr,Schueler BA,Strauss KJ,Suleiman OH,Yaffe MJ

更新日期：2005-05-01 00:00:00

abstract：PURPOSE:To evaluate the performance of a low-b-value diffusion-weighted (DW) echo-planar (EP) imaging sequence for detection of regional and diffuse myocardial edema in patients with acute myocarditis. MATERIALS AND METHODS:This study was approved by the institutional review board, and informed consent was obtained fr...

journal_title：Radiology

authors： Potet J,Rahmouni A,Mayer J,Vignaud A,Lim P,Luciani A,Dubois-Randé JL,Kobeiter H,Deux JF

更新日期：2013-11-01 00:00:00

abstract：PURPOSE:To prospectively evaluate to what extent image quality in 16-detector row computed tomographic (CT) coronary angiography is a function of the heart rate and the image reconstruction technique used. MATERIALS AND METHODS:A total of 70 patients (49 men, 21 women; mean age, 59.1 years +/- 5.8 [standard deviation]...

journal_title：Radiology

authors： Herzog C,Arning-Erb M,Zangos S,Eichler K,Hammerstingl R,Dogan S,Ackermann H,Vogl TJ

更新日期：2006-01-01 00:00:00

abstract：PURPOSE:To evaluate the ability of magnetization transfer (MT) contrast-prepared magnetic resonance (MR) imaging to help distinguish healthy from cirrhotic liver by using a spectrum of MT pulse frequency offsets. MATERIALS AND METHODS:This HIPAA-compliant prospective study was approved by the institutional review boar...

journal_title：Radiology

authors： Rosenkrantz AB,Storey P,Gilet AG,Niver BE,Babb JS,Hajdu CH,Lee VS

更新日期：2012-01-01 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：:Flow-alternating inversion-recovery magnetic resonance imaging was performed at 3.0 T to measure cerebral perfusion during rest and motor activation in six healthy adult volunteers. Results were compared with those at 1.5 T. The mean signal-to-noise ratio for both gray matter and white matter perfusion measured with a...

journal_title：Radiology

authors： Yongbi MN,Fera F,Yang Y,Frank JA,Duyn JH

更新日期：2002-02-01 00:00:00

abstract：:Stitch granuloma is rarely a consideration in the differential diagnosis of stomach lesions. This report documents the occurrence of a granulomatous mass of gastric origin simulating an intramural tumor. ...

journal_title：Radiology

authors： Belleza NA,Lowman RM

更新日期：1978-04-01 00:00:00

abstract：PURPOSE:To evaluate prospectively the accuracy of indirect magnetic resonance (MR) arthrography for supraspinatus tendon tears during neutral positioning or abduction and external rotation (ABER) and neutral positioning. MATERIALS AND METHODS:Informed consent was obtained in all patients, and the study was approved by...

journal_title：Radiology

authors： Herold T,Bachthaler M,Hamer OW,Hente R,Feuerbach S,Fellner C,Strotzer M,Lenhart M,Paetzel C

更新日期：2006-07-01 00:00:00

abstract：PURPOSE:To compare image quality and coronary artery stenosis detection with breath-hold (BH) and free-breathing navigator-gated (NAV) coronary magnetic resonance (MR) angiography performed with the same imaging sequence (steady-state free precession) and identical spatial resolution in patients suspected of having cor...

journal_title：Radiology

authors： Jahnke C,Paetsch I,Schnackenburg B,Bornstedt A,Gebker R,Fleck E,Nagel E

更新日期：2004-09-01 00:00:00

abstract：PURPOSE:To test the hypothesis that whole-body metabolic tumor burden (MTBWB) on postsurgical fluorodeoxyglucose (FDG) positron emission tomographic (PET)/computed tomographic (CT) images in patients with non-small cell lung cancer (NSCLC) is associated with their overall survival (OS). MATERIALS AND METHODS:The insti...

journal_title：Radiology

authors： Zhang C,Liao C,Penney BC,Appelbaum DE,Simon CA,Pu Y

更新日期：2015-06-01 00:00:00

abstract：PURPOSE:To assess the diagnostic performance of various Doppler ultrasonographic (US) vascularity measures in conjunction with grayscale (GS) criteria in differentiating benign from malignant breast masses, by using histologic findings as the reference standard. MATERIALS AND METHODS:Institutional Review Board and HIP...

journal_title：Radiology

authors： LeCarpentier GL,Roubidoux MA,Fowlkes JB,Krücker JF,Hunt KA,Paramagul C,Johnson TD,Thorson NJ,Engle KD,Carson PL

更新日期：2008-11-01 00:00:00

abstract：:The small digital computer is becoming ever more powerful, reliable, and inexpensive. Diagnostic radiology and the computer are becoming more intertwined. During the past decade, computed tomography (CT) has achieved outstanding success. CT and other digital image systems that are capable of computer manipulation, sto...

journal_title：Radiology

authors： Barnhard HJ,Lane GB

更新日期：1982-11-01 00:00:00

abstract：PURPOSE:To compare 1.5- and 3.0-T magnetic resonance (MR) images of porcine knee specimens containing artificial cartilage lesions in terms of accuracy of lesion depiction, image quality, and signal-to-noise ratio (SNR). MATERIALS AND METHODS:This Health Insurance Portability and Accountability Act-compliant study had...

journal_title：Radiology

authors： Masi JN,Sell CA,Phan C,Han E,Newitt D,Steinbach L,Majumdar S,Link TM

更新日期：2005-07-01 00:00:00

abstract：:The radiographic demonstration of lymph node involvement in amyloidosis is rare. Of 12 previously reported cases with lymph node enlargement, two also showed calcified nodes. This paper presents two new cases, one of which illustrates previously unreported findings. Recent advances that help to explain the pathogenesi...

journal_title：Radiology

authors： Gross BH

更新日期：1981-01-01 00:00:00

abstract：:Purpose To compare PET/MR hypoperfusion and hypometabolism in patients with Alzheimer disease (AD) and mild cognitive impairment (MCI) compared with healthy control (HC) participants. Materials and Methods Maps of cerebral blood flow (CBF; pulsed arterial spin-labeling [ASL] MRI), glucose metabolism (fluorine 18 [18F]...

journal_title：Radiology

authors： Riederer I,Bohn KP,Preibisch C,Wiedemann E,Zimmer C,Alexopoulos P,Förster S

更新日期：2018-07-01 00:00:00

abstract：:Purpose To evaluate the normal biodistribution and kinetics of (S)-4-(3-[18F]fluoropropyl)-l-glutamic acid ((18)F FSPG) in healthy volunteers and to compare (18)F FSPG mean and maximum standardized uptake values (SUVmean and SUVmax, respectively) with those of (18)F fluorodeoxyglucose (FDG) across a variety of organs....

journal_title：Radiology

authors： Mosci C,Kumar M,Smolarz K,Koglin N,Stephens AW,Schwaiger M,Gambhir SS,Mittra ES

更新日期：2016-06-01 00:00:00

abstract：PURPOSE:To identify opportunities for improving patient-centered communication about diagnostic imaging tests that involve the use of radiation in a cancer care setting. MATERIALS AND METHODS:Institutional review board approval and informed consent were obtained for this HIPAA-compliant study. Patient knowledge, infor...

journal_title：Radiology

authors： Thornton RH,Dauer LT,Shuk E,Bylund CL,Banerjee SC,Maloney E,Fox LB,Beattie CM,Hricak H,Hay J

更新日期：2015-05-01 00:00:00

abstract：PURPOSE:To compare survival of patients who undergo treatment in protocols versus survival of patients not in protocols. MATERIALS AND METHODS:Records of 81 adult patients with small-cell lung cancer who underwent chemotherapy and radiation therapy in 1987-1992 were reviewed retrospectively. Forty-one patients were in...

journal_title：Radiology

authors： Schea RA,Perkins P,Allen PK,Komaki R,Cox JD

更新日期：1995-12-01 00:00:00

abstract：:Multicenter, collaborative studies offer an effective way to meet the growing need for timely and generalizable clinical evaluations of imaging technologies. This article discusses issues of study design, statistical analysis, organization, and day-to-day group operation for collaborative prospective clinical evaluati...

journal_title：Radiology

authors： Gatsonis C,McNeil BJ

更新日期：1990-05-01 00:00:00

abstract：:The capability of ultrasonography and computed tomographic body scanning to demonstrate the status of the biliary tract was studied prospectively in 23 jaundiced patients. Ultrasonography correctly indicated the presence or absence of obstruction in 21 of the 23 patients and CT scanning in 20. Both procedures correctl...

journal_title：Radiology

authors： Goldberg HI,Filly RA,Korobkin M,Moss AA,Kressel HY,Callen PW

更新日期：1978-12-01 00:00:00

abstract：:Complications of indwelling ureteral stents were managed percutaneously in 13 patients. These complications consisted of three fractured, three heavily encrusted, and seven migrated stents. While most ureteral stent malfunctions are routinely managed with retrograde techniques, the percutaneous approach allows effecti...

journal_title：Radiology

authors： LeRoy AJ,Williams HJ Jr,Segura JW,Patterson DE,Benson RC Jr

更新日期：1986-01-01 00:00:00

abstract：:The authors present the postoperative angiographic appearance of the revascularized renal artery in 128 patients. The angiographic findings in four types of surgical procedures (saphenous bypass graft, dacron graft, endarterectomy, and reimplantation of the renal artery) are discussed. Postoperative angiography accura...

journal_title：Radiology

authors： Ekelund L,Gerlock J Jr,Goncharenko V,Foster J

更新日期：1978-02-01 00:00:00

abstract：PURPOSE:To assess diagnostic accuracy of preoperatively performed magnetic resonance (MR) imaging for detection of tumor extent in a large patient population with histopathologically proved retinoblastoma. MATERIALS AND METHODS:Local ethics committee approval and informed consent were not required for retrospective re...

journal_title：Radiology

authors： de Graaf P,Barkhof F,Moll AC,Imhof SM,Knol DL,van der Valk P,Castelijns JA

更新日期：2005-04-01 00:00:00

abstract：:Percutaneous biopsies of mediastinal tumors were successfully performed under sonographic guidance in 14 of 21 patients. In 10 of 11 malignant lesions, malignancy was determined by means of cytologic and histologic examination of the specimens obtained. A histologic diagnosis was reached in seven patients with maligna...

journal_title：Radiology

authors： Wernecke K,Vassallo P,Peters PE,von Bassewitz DB

更新日期：1989-08-01 00:00:00

abstract：PURPOSE:To retrospectively determine if patients with a history of intraoperative bile duct injury or liver transplantation have an increased risk for arterial injury (AI) during percutaneous transhepatic cholangiography (PTC) and percutaneous transhepatic biliary drainage (PTBD) compared with the risk of AI establishe...

journal_title：Radiology

authors： Fidelman N,Bloom AI,Kerlan RK Jr,Laberge JM,Wilson MW,Ring EJ,Gordon RL

更新日期：2008-06-01 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