Chronic hepatitis: in vivo proton MR spectroscopic evaluation of the liver and correlation with histopathologic findings.

abstract：PURPOSE:To determine the diagnostic performance of diffusion-weighted (DW) imaging for the prediction of treatment failure in primary head and neck squamous cell carcinoma (HNSCC). MATERIALS AND METHODS:The study was approved by the local institutional ethics committee and conducted with informed written consent in pa...

journal_title：Radiology

authors： King AD,Chow KK,Yu KH,Mo FK,Yeung DK,Yuan J,Bhatia KS,Vlantis AC,Ahuja AT

更新日期：2013-02-01 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：PURPOSE:To determine whether enhancement at multiphasic multidetector computed tomography (CT) can help differentiate clear cell renal cell carcinoma (RCC) from oncocytoma, papillary RCC, and chromophobe RCC. MATERIALS AND METHODS:With institutional review board approval for this HIPAA-compliant retrospective study, t...

journal_title：Radiology

authors： Young JR,Margolis D,Sauk S,Pantuck AJ,Sayre J,Raman SS

更新日期：2013-05-01 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：:Pressure, or compressive, erosions of bone in various locations in patients with rheumatoid arthritis are described. Possible pathophysiologic mechanisms that account for the appearance and distribution of these erosions include osteopenia, soft-tissue laxity, soft-tissue pressure on bone, bone pressure on bone, and m...

journal_title：Radiology

authors： Monsees B,Destouet JM,Murphy WA,Resnick D

更新日期：1985-04-01 00:00:00

abstract：:Seventeen children with acute renal failure due to the hemolytic-uremic syndrome were examined with duplex Doppler ultrasound. Serial measurements of intrarenal arterial pulsatility were obtained by means of the Pourcelot index. These were compared with daily urine volume, both during the phase of renal failure (durin...

journal_title：Radiology

authors： Patriquin HB,O'Regan S,Robitaille P,Paltiel H

更新日期：1989-09-01 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：:Extracorporeal shock wave lithotripsy (ESWL), either alone or in combination with percutaneous or retrograde techniques, has rapidly become the procedure of choice for the treatment of intrarenal and upper ureteral calculi. Complications have been few so far and usually have been urinary obstructions or hemorrhages. M...

journal_title：Radiology

authors： Papanicolaou N,Stafford SA,Pfister RC,Althausen AF,Dretler SP

更新日期：1987-06-01 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：:A vena caval filter than can be introduced percutaneously via the femoral vein is described. We placed these filters in five patients without complications. Experimental work in filter removal one to two weeks after insertion in dogs has been performed. ...

journal_title：Radiology

authors： Lund G,Rysavy J,Hunter DW,Castaneda-Zuniga WR,Amplatz K

更新日期：1985-06-01 00:00:00

abstract：:Clinical, angiographic, scintigraphic and pathologic observations in myocardial contusion were correlated. Radionuclide imaging of the injured heart with 99mTc-Sn-polyphosphate provides an accurate diagnosis in acute, even mild, myocardial contusion. The study can be carried out without danger to the critically ill pa...

journal_title：Radiology

authors： Chiu CL,Roelofs JD,Go RT,Doty DB,Rose EF,Christie JH

更新日期：1975-09-01 00:00:00

abstract：:Institutional review board approval, with waived consent, was obtained to develop a spine-labeling algorithm with retrospectively obtained deidentified HIPAA-compliant data. An automated magnetic resonance (MR) imaging technique to rapidly survey the entire spine and provide definitive numbering of disks and vertebrae...

journal_title：Radiology

authors： Weiss KL,Storrs JM,Banto RB

更新日期：2006-04-01 00:00:00

abstract：PURPOSE:To retrospectively analyze serial chest radiographs in all patients with severe acute respiratory syndrome (SARS) in Hong Kong for temporal changes and differences between patients who died and those who were discharged from the hospital and to compare radiographic and clinical parameters. MATERIALS AND METHOD...

journal_title：Radiology

authors： Antonio GE,Ooi CG,Wong KT,Tsui EL,Wong JS,Sy AN,Hui JY,Chan CY,Huang HY,Chan YF,Wong TP,Leong LL,Chan JC,Ahuja AT

更新日期：2005-12-01 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：:Substantial technologic advances in radiation treatment planning and delivery have made possible exquisite tailoring of three-dimensional radiation dose distributions that conform to the tumor treatment volume while avoiding adjacent normal tissues. Although such highly precise treatment can increase the therapeutic r...

journal_title：Radiology

authors： Terezakis SA,Heron DE,Lavigne RF,Diehn M,Loo BW Jr

更新日期：2011-10-01 00:00:00

abstract：:On rare occasions, excessive lipase production by functioning pancreatic acinar cell carcinoma results in subcutaneous and intraosseous fat necrosis. A patient with subcutaneous nodules and osteolytic lesions from metastatic fat necrosis associated with this malignancy is reported. Prompt recognition of the syndrome l...

journal_title：Radiology

authors： Radin DR,Colletti PM,Forrester DM,Tang WW

更新日期：1986-01-01 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 test previously defined ultrasound (US) criteria for identification of partial-thickness tears of the rotator cuff. MATERIALS AND METHODS:Before shoulder arthroscopy, 52 patients with shoulder pain for more than 3 months were examined with a 7.5-MHz commercially available linear-array transducer and a stand...

journal_title：Radiology

authors： van Holsbeeck MT,Kolowich PA,Eyler WR,Craig JG,Shirazi KK,Habra GK,Vanderschueren GM,Bouffard JA

更新日期：1995-11-01 00:00:00

abstract：PURPOSE:To compare observer performance by using soft-copy images produced by an amorphous silicon flat-panel-detector system and a storage-phosphor system for the detection of simulated chest lesions. MATERIALS AND METHODS:To test the diagnostic performance of these two systems, four types of simulated lesions (nodul...

journal_title：Radiology

authors： Goo JM,Im JG,Lee HJ,Chung MJ,Seo JB,Kim HY,Lee YJ,Kang JW,Kim JH

更新日期：2002-07-01 00:00:00

abstract：PURPOSE:To develop an ultrasound (US) extended-field-of-view scanning technique that combines the convenience of a real-time scanner with the spatial advantages of a static B-mode scanner and provides a panoramic image in real time without position sensors or cumbersome articulated arms. MATERIALS AND METHODS:An image...

journal_title：Radiology

authors： Weng L,Tirumalai AP,Lowery CM,Nock LF,Gustafson DE,Von Behren PL,Kim JH

更新日期：1997-06-01 00:00:00

abstract：:Power Doppler sonography was used in eight symptomatic knees in seven patients with arthritis before and after joint aspiration and intraarticular administration of steroids. A qualitative decrease in synovial perfusion was observed in all eight knees, and symptoms improved in seven of the eight cases. These prelimina...

journal_title：Radiology

authors： Newman JS,Laing TJ,McCarthy CJ,Adler RS

更新日期：1996-02-01 00:00:00

abstract：:Forty papers on the radiologic detection of pituitary microadenomas were reviewed and used as the basis for a discussion of the sometimes tentative nature of published results in clinical research. Early articles on the radiologic evaluation of pituitary microadenomas, reporting favorable results with special plain fi...

journal_title：Radiology

authors： Taylor CR,Jaffe CC

更新日期：1983-04-01 00:00:00

abstract：:Purpose To measure the levels of gadolinium present in the rat brain 1 and 20 weeks after dosing with contrast agent and to determine if there are any histopathologic sequelae. Materials and Methods The study was approved by the GE Global Research Center Institutional Animal Care and Use Committee. Absolute gadolinium...

journal_title：Radiology

authors： Smith AP,Marino M,Roberts J,Crowder JM,Castle J,Lowery L,Morton C,Hibberd MG,Evans PM

更新日期：2017-03-01 00:00:00

abstract：PURPOSE:To prospectively assess the frequency and cause of disagreements in diagnoses at ultrasonography (US) and magnetic resonance (MR) imaging for fetuses referred for ventriculomegaly (VM). MATERIALS AND METHODS:One hundred ninety-five women, aged 18-44 years, with 200 fetal referrals for VM, were recruited in a p...

journal_title：Radiology

authors： Levine D,Feldman HA,Tannus JF,Estroff JA,Magnino M,Robson CD,Poussaint TY,Barnewolt CE,Mehta TS,Robertson RL

更新日期：2008-05-01 00:00:00

abstract：:Radiological abnormalities of the ribs are reported in 5 newborn infants with myotonic dystrophy. In all 5, the ribs appeared very thin, in contrast to the normal appearance of the rest of the skeleton. This slenderness, which is important for diagnosis and prognosis, seems to be caused by hypotonia of the intercostal...

journal_title：Radiology

authors： Chassevent J,Sauvegrain J,Besson-Leaud M,Kalifa G

更新日期：1978-06-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate the role of computer-aided detection (CAD) in reducing the rate of false-negative (FN) findings on screening mammograms considered normal at initial double reading. MATERIALS AND METHODS:At the authors' institution, independent prospective double readings in which the second reader ...

journal_title：Radiology

authors： Destounis SV,DiNitto P,Logan-Young W,Bonaccio E,Zuley ML,Willison KM

更新日期：2004-08-01 00:00:00

abstract：:Deshpande et al (1) have shown that P-selectin-targeted microbubbles (MBs) can be used to monitor the expression of this molecule as a marker of inflammation in a murine model of inflammatory bowel disease (IBD). If these results can be reproduced in future clinical trials, contrast material–enhanced ultrasound (US) o...

journal_title：Radiology

authors： Forsberg F

更新日期：2012-01-01 00:00:00

abstract：:Anti-scatter grids reduce the amount of secondary radiation contributing to the image and improve the signal-to-noise ratio. However, they may also lead to the creation of linear artifacts representing the shadows of the radiopaque septa. Grid motion perpendicular to the septa during the exposure can cause blurring of...

journal_title：Radiology

authors： Bednarek DR,Rudin S,Wong R

更新日期：1983-04-01 00:00:00

abstract：:Fifty patients with chronic urinary tract schistosomiasis were studied with 99mTc-DTPA. All had a flow study, sequential analog imaging, and digital imaging for 25-35 minutes (20-sec. frames). Time-activity curves (DTPA renograms) were extracted; 12 patients had 131I-Hippuran probe renograms as well. Renal changes inc...

journal_title：Radiology

authors： Lamki LM,Lamki N

更新日期：1981-08-01 00:00:00

abstract：:A diagnostic ultrasound examination is a simple and reliable method of obtaining anatomical information for intracavitary irradiation of endometrial carcinoma of the uterus. Scanning before treatment to determine uterine size and shape assists in choosing the most appropriate applicator. Scanning after insertion of an...

journal_title：Radiology

authors： Brascho DJ,Kim RY,Wilson EE

更新日期：1978-10-01 00:00:00