Effect of downstream cross-sectional area of an arterial bed on the resistive index and the early systolic acceleration.

abstract：PURPOSE:To evaluate breast imaging training and knowledge of radiology residents over a 3-year period. MATERIALS AND METHODS:From 1992 through 1994, the American College of Radiology (ACR) sponsored a 1-day comprehensive breast imaging seminar, which was attended by 2,249 radiology residents at the 6-week radiologic-p...

journal_title：Radiology

authors： Jackson VP,Bresch JA,Bassett LW,Dershaw DD,Jessop NW

更新日期：1996-12-01 00:00:00

abstract：PURPOSE:To evaluate the accuracy of transvaginal ultrasound (US) and gadolinium-enhanced magnetic resonance (MR) imaging in the assessment of the intratumoral structure of an adnexal mass. MATERIALS AND METHODS:The population comprised 82 patients with an adnexal mass who underwent both transvaginal US and gadolinium-...

journal_title：Radiology

authors： Komatsu T,Konishi I,Mandai M,Togashi K,Kawakami S,Konishi J,Mori T

更新日期：1996-01-01 00:00:00

abstract：:Serial proton nuclear magnetic resonance (NMR) images of distal upper extremities were obtained in four healthy volunteers and four patients with giant cell tumor of the distal radius. The steady-state-free-precession (SSFP) data collection technique and an 8-cm bore superconducting magnet (1.44 tesla) were used. All ...

journal_title：Radiology

authors： Brady TJ,Gebhardt MC,Pykett IL,Buonanno FS,Newhouse JH,Burt CT,Smith RJ,Mankin HJ,Kistler JP,Goldman MR,Hinshaw WS,Pohost GM

更新日期：1982-08-01 00:00:00

abstract：PURPOSE:To retrospectively determine the incidence of nephrogenic systemic fibrosis (NSF) in a large academic medical center after the adoption of restrictive gadolinium-based contrast agent (GBCA) administration guidelines. MATERIALS AND METHODS:For this retrospective HIPAA-compliant study, institutional review board...

journal_title：Radiology

authors： Wang Y,Alkasab TK,Narin O,Nazarian RM,Kaewlai R,Kay J,Abujudeh HH

更新日期：2011-07-01 00:00:00

abstract：:Dilatation of the aortic root, outlined by a periaortic fat layer, was observed in 19 of 25 successive cases of aneurysm of the ascending aorta. In one of these cases the aneurysm was entirely confined to the aortic root. In two other cases the aneurysms could not be detected on standard chest radiographs judged in th...

journal_title：Radiology

authors： Szamosi A

更新日期：1981-03-01 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：:Radionuclide findings in a case of cavernous sinus occlusion by an intracavernous aneurysm are described. A brain image obtained 10 minutes after injection of 99Tc pertechnetate shows diminished activity in the area of the right cavernous sinus and increased activity in the area of the right sylvian veins; these are a...

journal_title：Radiology

authors： Hahn FJ,Schapiro RL

更新日期：1976-01-01 00:00:00

abstract：:Radiographs of 38 children with Down syndrome (aged 2-3 years) were retrospectively evaluated for hypoplasia of the posterior arch of the C-1 vertebra. The anteroposterior dimensions of the posterior arch of C-1 were measured and compared with those of an age- and sex-matched control group. The posterior arches of C-2...

journal_title：Radiology

authors： Martich V,Ben-Ami T,Yousefzadeh DK,Roizen NJ

更新日期：1992-04-01 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 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 describe our experience with stereotactic histologic biopsy in patients with breast implants. MATERIALS AND METHODS:Thirty-one (1.3%) of 2,399 consecutive lesions on which stereotactic histologic biopsy was performed were in breasts containing implants. Biopsy difficulties were evaluated for lesions in brea...

journal_title：Radiology

authors： Jackman RJ,Lamm RL

更新日期：2002-01-01 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：:Forty-two hypertensive patients with fibromuscular dysplasia who had angiographic evidence of the development of new disease or of the progression of existing disease were studied. Renal arterial disease was classified as medial fibroplasia with aneurysms (12 patients), subadventitial fibroplasia (24 patients), or int...

journal_title：Radiology

authors： Goncharenko V,Gerlock AJ Jr,Shaff MI,Hollifield JW

更新日期：1981-04-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate the sensitivity of computer-aided detection (CAD) in depicting ductal carcinoma in situ (DCIS) on screening mammograms by using biopsy proved lesion location as the reference standard. MATERIALS AND METHODS:Institutional review board approval was obtained, with a waiver of patient i...

journal_title：Radiology

authors： Pai VR,Gregory NE,Swinford AE,Rebner M

更新日期：2006-12-01 00:00:00

abstract：:A number of surgical clips and other metallic materials embedded within patients have ferromagnetic properties that present a potential hazard when in the strong fields associated with magnetic resonance imaging. Several types of magnetometers and metal detectors were investigated as possible pre-imaging screening dev...

journal_title：Radiology

authors： Finn EJ,Di Chiro G,Brooks RA,Sato S

更新日期：1985-07-01 00:00:00

abstract：PURPOSE:To measure mean cerebral blood flow (CBF) in ischemic and nonischemic territories and in low-attenuation regions in patients with acute stroke by using deconvolution-derived hemodynamic imaging. MATERIALS AND METHODS:Twelve patients with acute middle cerebral artery stroke and 12 control patients were examined...

journal_title：Radiology

authors： Eastwood JD,Lev MH,Azhari T,Lee TY,Barboriak DP,Delong DM,Fitzek C,Herzau M,Wintermark M,Meuli R,Brazier D,Provenzale JM

更新日期：2002-01-01 00:00:00

abstract：PURPOSE:To assess the diagnostic value of spinal ultrasonography (US) in pediatric patients. MATERIALS AND METHODS:The findings on 38 spinal US scans in 30 patients (mean age, 5.5 months) were compared with those of corresponding magnetic resonance (MR) images. RESULTS:MR imaging showed a normal spinal canal in 14 of...

journal_title：Radiology

authors： Rohrschneider WK,Forsting M,Darge K,Tröger J

更新日期：1996-08-01 00:00:00

abstract：:Persistent bile leaks after liver transplantation were successfully treated in three patients with percutaneous or surgical drainage of bilomas and endoscopic retrograde ampullary sphincterotomy. In all three patients, biliary anastomoses were achieved by means of choledochocholedochostomies, with a T-tube stent in th...

journal_title：Radiology

authors： Ward EM,Wiesner RH,Hughes RW,Krom RA

更新日期：1991-06-01 00:00:00

abstract：PURPOSE:To evaluate the relative benefits and cost-effectiveness of treating iliac arterial occlusive disease with various interventions. MATERIALS AND METHODS:Cost-effectiveness was analyzed in a hypothetical cohort of patients with intermittent claudication caused by an iliac arterial stenosis. Primary stent placeme...

journal_title：Radiology

authors： Bosch JL,Tetteroo E,Mali WP,Hunink MG

更新日期：1998-09-01 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 evaluate whether dual-selectin-targeted US molecular imaging allows longitudinal monitoring of anti-inflammatory treatment effects in an acute terminal ileitis model in swine. Materials and Methods The Institutional Animal Care and Use Committee approved all animal studies. Fourteen swine with chemically in...

journal_title：Radiology

authors： Wang H,Hyvelin JM,Felt SA,Guracar I,Vilches-Moure JG,Cherkaoui S,Bettinger T,Tian L,Lutz AM,Willmann JK

更新日期：2018-10-01 00:00:00

abstract：:Purpose To determine the association between the administration of the macrocyclic contrast medium gadobutrol and T1 relaxation time in the brains of patients with normal renal function by using multidynamic multiecho (MDME) magnetic resonance (MR) imaging sequences. Materials and Methods The institutional review boar...

journal_title：Radiology

authors： Kang KM,Choi SH,Hwang M,Yun TJ,Kim JH,Sohn CH

更新日期：2018-04-01 00:00:00

abstract：PURPOSE:To characterize the magnetic resonance (MR) imaging response of brain metastases after gamma knife stereotactic radiosurgery and determine whether imaging features and tumor response rates correlate with local tumor control and survival. MATERIALS AND METHODS:Serial MR examinations were performed in 48 patient...

journal_title：Radiology

authors： Peterson AM,Meltzer CC,Evanson EJ,Flickinger JC,Kondziolka D

更新日期：1999-06-01 00:00:00

abstract：:Purpose To investigate the feasibility of deformable, motion-coherent modeling based on electrocardiography-gated multidetector computed tomographic (CT) angiography of the thoracic aorta and to evaluate whether quantifiable information on aortic wall stress as a function of patient-specific cardiovascular parameters ...

journal_title：Radiology

authors： Mileto A,Heye TJ,Makar RA,Hurwitz LM,Marin D,Boll DT

更新日期：2016-07-01 00:00:00

abstract：:Background It is uncertain whether a deep learning-based automatic detection algorithm (DLAD) for identifying malignant nodules on chest radiographs will help diagnose lung cancers. Purpose To evaluate the efficacy of using a DLAD in observer performance for the detection of lung cancers on chest radiographs. Material...

journal_title：Radiology

authors： Jang S,Song H,Shin YJ,Kim J,Kim J,Lee KW,Lee SS,Lee W,Lee S,Lee KH

更新日期：2020-09-01 00:00:00

abstract：PURPOSE:To prospectively compare brain magnetic resonance (MR) imaging and hydrogen 1 (1H) MR spectroscopy findings and to use functional MR imaging to explore the patterns of brain activation in men and women with Fabry disease (FD). MATERIALS AND METHODS:Eight men and eight women with FD (mean age, 38.8 years +/- 13...

journal_title：Radiology

authors： Gavazzi C,Borsini W,Guerrini L,Della Nave R,Rocca MA,Tessa C,Buchner S,Belli G,Filippi M,Villari N,Mascalchi M

更新日期：2006-11-01 00:00:00

abstract：:The plain chest film may be critical in deciding whether a seriously injured patient should undergo aortography in order to exclude traumatic aortic rupture. The roentgen findings suggestive of aortic transection reflect the presence of mediastinal bleeding. A left apical extrapleural cap is frequently seen in these p...

journal_title：Radiology

authors： Simeone JF,Minagi H,Putman CE

更新日期：1975-11-01 00:00:00

abstract：:Diffusional anisotropy of human brain was investigated clinically in six adult volunteers, eight premature neonates, and three infants aged 5-10 months. Diffusion-weighted magnetic resonance imaging was performed with gradient b of 450 sec/mm2. The direction of diffusion-sensitive gradients was changed among x, y, and...

journal_title：Radiology

authors： Sakuma H,Nomura Y,Takeda K,Tagami T,Nakagawa T,Tamagawa Y,Ishii Y,Tsukamoto T

更新日期：1991-07-01 00:00:00

abstract：:The variety of cervical lymphadenectomy and neck reconstructive procedures that have been developed in the past 20 years has led to confusion about nomenclature in the literature. In addition, some of these operations result in gross alteration of the normal anatomy. The authors review the present classification syste...

journal_title：Radiology

authors： Som PM,Urken ML,Biller H,Lidov M

更新日期：1993-06-01 00:00:00

abstract：:Eighteen cases of long-standing rheumatoid arthritis and superimposed pyarthrosis were reviewed to determine the most distinguishing radiographic features. Soft-tissue changes allowed earlier diagnosis in the knee and ankle joints and consisted of large asymmetrical joint effusion and fat-pad edema. Bony articular cha...

journal_title：Radiology

authors： Gelman MI,Ward JR

更新日期：1977-01-01 00:00:00