Case 237: Renal Cell Carcinoma with Osseous Metaplasia.

abstract：PURPOSE:To evaluate diagnostic performance of three nonenhanced methods: variable-refocusing-flip angle (FA) fast spin-echo (SE)-based magnetic resonance (MR) angiography (variable FA MR) and constant-refocusing-FA fast SE-based MR angiography (constant-FA MR) and flow-sensitive dephasing (FSD)-prepared steady-state fr...

journal_title：Radiology

authors： Lim RP,Fan Z,Chatterji M,Baadh A,Atanasova IP,Storey P,Kim DC,Kim S,Hodnett PA,Ahmad A,Stoffel DR,Babb JS,Adelman MA,Xu J,Li D,Lee VS

更新日期：2013-04-01 00:00:00

abstract：PURPOSE:To retrospectively determine whether blood oxygen level-dependent functional magnetic resonance (MR) imaging can aid prediction of postoperative memory changes in epileptic patients after temporal lobe surgery. MATERIALS AND METHODS:This study was approved by the local ethics committee, and informed consent wa...

journal_title：Radiology

authors： Dupont S,Duron E,Samson S,Denos M,Volle E,Delmaire C,Navarro V,Chiras J,Lehéricy S,Samson Y,Baulac M

更新日期：2010-04-01 00:00:00

abstract：PURPOSE:To prospectively investigate whether there is support for the hypothesis that clinically unrecognized myocardial infarctions (UMIs) detected at magnetic resonance (MR) imaging have an atherosclerotic pathogenesis similar to that of recognized myocardial infarctions (RMIs). MATERIALS AND METHODS:After ethics co...

journal_title：Radiology

authors： Ebeling Barbier C,Bjerner T,Hansen T,Andersson J,Lind L,Hulthe J,Johansson L,Ahlström H

更新日期：2007-10-01 00:00:00

abstract：:Bilateral peripheral pulmonary infiltrates caused by Pneumocystis carinii developed in a patient undergoing mediastinal irradiation after chemotherapy for Hodgkin disease. The paramediastinal part of the lung included within the treatment port remained clear during the 2 1/2 weeks of radiation therapy. The distributio...

journal_title：Radiology

authors： Panicek DM,Groskin SA,Chung CT,Heitzman ER,Sagerman RH

更新日期：1987-06-01 00:00:00

abstract：:Of 293 patients who underwent computed tomography (CT), surgery, and pathologic examination for chronic sinusitis, 25 had a diagnosis of fungal sinusitis at pathologic examination. Of these, 22 had foci of increased attenuation at CT (in four patients the mean representative CT number [Hounsfied unit] was 122.2 HU [SD...

journal_title：Radiology

authors： Zinreich SJ,Kennedy DW,Malat J,Curtin HD,Epstein JI,Huff LC,Kumar AJ,Johns ME,Rosenbaum AE

更新日期：1988-11-01 00:00:00

abstract：:A new catheter system was designed for percutaneous fragmentation of large pulmonary emboli. The device consists of an impeller rotating at high speed at the center of a self-expandable basket at the tip of a 7-F catheter. The highly flexible catheter was able to reach all tested embolus sites in a glass model of the ...

journal_title：Radiology

authors： Schmitz-Rode T,Günther RW

更新日期：1991-07-01 00:00:00

abstract：PURPOSE:To evaluate the magnetic resonance (MR) imaging appearance of the testes in women with complete androgen insensitivity syndrome (CAIS), including any benign or malignant changes. MATERIALS AND METHODS:This was a retrospective review of the testicular MR images and histologic reports from 25 patients with CAIS ...

journal_title：Radiology

authors： Nakhal RS,Hall-Craggs M,Freeman A,Kirkham A,Conway GS,Arora R,Woodhouse CR,Wood DN,Creighton SM

更新日期：2013-07-01 00:00:00

abstract：:The pathological changes in the female urethra, para-urethral glands, and bladder neck, which manifest clinically as urethral syndrome, produce radiological signs which are recognizable but for which the authors have not found previous reports. The radiographic manifestations of this disease are clearly demonstrated b...

journal_title：Radiology

authors： Jackson EA

更新日期：1976-05-01 00:00:00

abstract：PURPOSE:To evaluate initial radiologic findings of symptomatic intracranial vertebrobasilar dissections (VBDs) as well as the results at follow-up imaging of dissections that are conservatively managed. MATERIALS AND METHODS:The respective institutional review boards approved this retrospective study and waived the ne...

journal_title：Radiology

authors： Ahn SS,Kim BM,Suh SH,Kim DJ,Kim DI,Shin YS,Ha SY,Kwon YS

更新日期：2012-07-01 00:00:00

abstract：:Localized phosphorus-31 magnetic resonance (MR) spectroscopy in humans has previously been accomplished with surface coils by means of depth-resolved surface coil spectroscopy or rotating frame experiments, in which the extent of tissue sampled critically depends on surface coil placement. The authors' goal was to mod...

journal_title：Radiology

authors： Matson GB,Twieg DB,Karczmar GS,Lawry TJ,Gober JR,Valenza M,Boska MD,Weiner MW

更新日期：1988-11-01 00:00:00

abstract：PURPOSE:To clarify the angiographic findings of the posterior circulation in patients with moyamoya disease. MATERIALS AND METHODS:Seventy-six patients with idiopathic moyamoya disease were studied with conventional angiography. The angiographic findings were reviewed for steno-occlusive lesions, collateral vessels, a...

journal_title：Radiology

authors： Yamada I,Himeno Y,Suzuki S,Matsushima Y

更新日期：1995-10-01 00:00:00

abstract：PURPOSE:To document the possible association of segmental tracheomalacia in the thoracic inlet with the combination of a large thymus and normal innominate artery. MATERIALS AND METHODS:Eight infants with symptoms of innominate artery compression of the trachea were studied. The diagnostic approach included observatio...

journal_title：Radiology

authors： Mandell GA,McNicholas KW,Padman R,Harcke HT

更新日期：1994-01-01 00:00:00

abstract：:History A 52-year-old man with a history of urinary tract infections and a previous clinical diagnosis of left inguinal hernia presented to the nephrologist with recent onset of dysuria and increasing swelling in the left inguinoscrotal region in the absence of fever or scrotal trauma. There was no relevant surgical o...

journal_title：Radiology

authors： Di Nicolò P,Aleo D,Riccioli E,Granata A

更新日期：2016-06-01 00:00:00

abstract：:The classical abnormalities of von Recklinghausen disease (VRD) or neurofibromatosis are well recognized. However, vertebral scalloping and gauge defects of the anterior and lateral aspects have not been reviewed, to the authors' knowledge. Case reports of 3 patients with vertebral scalloping are presented. The classi...

journal_title：Radiology

authors： Casselman ES,Mandell GA

更新日期：1979-04-01 00:00:00

abstract：PURPOSE:To prospectively identify brain regions in which task-related changes in activation during a memory encoding task, measured with functional magnetic resonance (MR) imaging, correlate with degree of memory impairment across Alzheimer disease (AD), mild cognitive impairment (MCI), and elderly control subjects. M...

journal_title：Radiology

authors： Petrella JR,Wang L,Krishnan S,Slavin MJ,Prince SE,Tran TT,Doraiswamy PM

更新日期：2007-10-01 00:00:00

abstract：:To prevent platelet aggregation following percutaneous transluminal angioplasty (PTA), cyclooxygenase inhibitors such as acetylsalicylic acid (ASA) and indomethacin are recommended. However, ASA blocks both the proaggregating effects of thromboxane (TXA2) and the antiaggregating and vasodilating effects of prostacycli...

journal_title：Radiology

authors： Zollikofer CL,Cragg AH,Einzig S,Castaneda-Zuniga WR,Castaneda F,Rysavy JA,Bruhlmann WF,Shebuski RJ,Amplatz K

更新日期：1983-12-01 00:00:00

abstract：:Percutaneous cholecystolithotripsy can be performed with a transhepatic or transperitoneal approach. Because the anatomy of the gallbladder varies from person to person, the authors began a study to evaluate the position of the gallbladder with computed tomographic scans of 100 patients known to have stones in their g...

journal_title：Radiology

authors： Hruby W,Urban M,Stackl W,Armbruster C,Marberger M

更新日期：1989-11-01 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：PURPOSE:To evaluate the 15-year trend in the use of computed tomography (CT) in hospitalized pediatric trauma patients admitted to Harborview Medical Center (HMC) from 1996 to 2010. MATERIALS AND METHODS:This Health Insurance Portability and Accountability Act-compliant retrospective study was approved by the institut...

journal_title：Radiology

authors： Roudsari BS,Psoter KJ,Vavilala MS,Mack CD,Jarvik JG

更新日期：2013-05-01 00:00:00

abstract：:A computer based verification system which monitors the operation of a 4-MV linear accelerator is described. Fourteen parameters can be checked for proper alignment prior to irradiation. A training simulator was also built to minimize interference with treatment schedules and to provide technicians with experience in ...

journal_title：Radiology

authors： Sternick ES,Berry JR,Curran B,Loomis SA

更新日期：1979-04-01 00:00:00

abstract：PURPOSE:To evaluate the effect of scanner type and calcium measure on the reproducibility of calcium measurements. MATERIALS AND METHODS:This investigation was approved by the institutional review boards of each study site and by the Institutional Review Board of the Los Angeles Biomedical Research Institute. Informed...

journal_title：Radiology

authors： Detrano RC,Anderson M,Nelson J,Wong ND,Carr JJ,McNitt-Gray M,Bild DE

更新日期：2005-08-01 00:00:00

abstract：:The authors report two cases of coexistent pneumomediastinum and diabetic ketoacidosis. One patient had pneumothorax as well. Hyperpnea or vomiting, or a combination of the two, may be the etiologic agent in such cases. The prognosis is excellent and there is prompt regression of the pneumomediastinum following correc...

journal_title：Radiology

authors： Toomey FB,Chinnock RF

更新日期：1975-09-01 00:00:00

abstract：:Clinical, pathologic, and computed tomographic (CT) findings were reviewed in 400 patients with ethmoid sinus disease, including 272 who had undergone surgery. The postoperative appearance of ethmoid sinuses on CT scans is a highly neglected subject in radiologic literature. The unique ethmoid anatomy permits a variet...

journal_title：Radiology

authors： Som PM,Lawson W,Biller HF,Lanzieri CF

更新日期：1986-06-01 00:00:00

abstract：PURPOSE:To correlate the in vivo hydrogen 1 ((1)H) magnetic resonance (MR) spectroscopic features of the chronic hepatitis-involved liver with the histopathologic stages of fibrosis. MATERIALS AND METHODS:Seventy-five patients with chronic hepatitis were examined with (1)H MR spectroscopy, which was performed in the r...

journal_title：Radiology

authors： Cho SG,Kim MY,Kim HJ,Kim YS,Choi W,Shin SH,Hong KC,Kim YB,Lee JH,Suh CH

更新日期：2001-12-01 00:00:00

abstract：:Over the past 6 years, the authors evaluated 300 patients with hepatoma as part of phase 1 and 2 treatment protocol trials. Analysis of the available clinical data and radiographic studies revealed 22 patients (7.3%) with skeletal metastases demonstrated by radiography, computed tomography (CT), and/or nuclear scintig...

journal_title：Radiology

authors： Kuhlman JE,Fishman EK,Leichner PK,Magid D,Order SE,Siegelman SS

更新日期：1986-07-01 00:00:00

abstract：:The blood supplies of nodular lesions associated with liver cirrhosis were analyzed in vivo with various imaging modalities. The portal blood supply was evaluated with computed tomography (CT) during arterial portography (CTAP); the arterial blood supply was evaluated with hepatic angiography, CT angiography, CT follo...

journal_title：Radiology

authors： Matsui O,Kadoya M,Kameyama T,Yoshikawa J,Takashima T,Nakanuma Y,Unoura M,Kobayashi K,Izumi R,Ida M

更新日期：1991-02-01 00:00:00

abstract：PURPOSE:To investigate whether cerebral blood volume (CBV), peak height (PH), and percentage of signal intensity recovery (PSR) measurements derived from the results of T2-weighted dynamic susceptibility-weighted contrast material-enhanced (DSC) magnetic resonance (MR) imaging performed after external beam radiation th...

journal_title：Radiology

authors： Barajas RF Jr,Chang JS,Segal MR,Parsa AT,McDermott MW,Berger MS,Cha S

更新日期：2009-11-01 00:00:00

abstract：:A case of methotrexate-induced brain damage is presented. Computed tomography (CT) demonstrated a high-density mass lesion with a low-density area in the white matter which pathologically represented a large area of acute necrotizing cerebritis. CT appearance was indistinguishable from brain abscess. ...

journal_title：Radiology

authors： Bjorgen JE,Gold LH

更新日期：1977-02-01 00:00:00

abstract：PURPOSE:To assess the effects of acquisition duration on computed tomographic (CT) perfusion parameter values in neuroendocrine liver metastases and normal liver tissue. MATERIALS AND METHODS:This retrospective study was institutional review board approved, with waiver of informed consent. CT perfusion studies in 16 p...

journal_title：Radiology

authors： Ng CS,Hobbs BP,Chandler AG,Anderson EF,Herron DH,Charnsangavej C,Yao J

更新日期：2013-12-01 00:00:00

abstract：PURPOSE:To determine the effect of the interpretation of plain chest radiographs on the time to definitive diagnosis of aortic dissection. MATERIALS AND METHODS:The authors evaluated chest radiographs from 75 patients in whom chest radiography was performed before aortic dissection was diagnosed. The radiographs and a...

journal_title：Radiology

authors： Luker GD,Glazer HS,Eagar G,Gutierrez FR,Sagel SS

更新日期：1994-12-01 00:00:00