Computed tomographic appearance of methotrexate-induced necrotizing leukoencephalopathy.

abstract：:The vlue of epinephrine enhanced angiography in the preoperative distinction of isolated hamartoma (angiomyolipoma without stigma of tuberous sclerosis) from hypernephroma has been largely discounted in the past. The authors performed this procedure in 6 patients (4 with isolated hamartoma and 2 with tuberous sclerosi...

journal_title：Radiology

authors： Jander HP,Tonkin IL

更新日期：1979-07-01 00:00:00

abstract：:Ultrasonography and endoscopic retrograde cholangiopancreatography (ERCP) were performed in 216 patients with known or suspected pancreatic disease. Both techniques provided accurate information in all groups of patients (normals and those with recurrent acute pancreatitis, chronic pancreatitis, and cancer), and there...

journal_title：Radiology

authors： Cotton PB,Lees WR,Vallon AG,Cottone M,Croker JR,Chapman M

更新日期：1980-02-01 00:00:00

abstract：:The purpose of this study was to prospectively use a whole-heart three-dimensional (3D) coronary magnetic resonance (MR) angiography technique specifically adapted for use at 3 T and a parallel imaging technique (sensitivity encoding) to evaluate coronary arterial anomalies and variants (CAAV). This HIPAA-compliant st...

journal_title：Radiology

authors： Gharib AM,Ho VB,Rosing DR,Herzka DA,Stuber M,Arai AE,Pettigrew RI

更新日期：2008-04-01 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：:The use of vasopressin infusion or arterial embolization in the treatment of 87 patients with gastrointestinal hemorrhage is reviewed. A bleeding point was identified angiographically in 46 patients (53%), with a higher success rate in those with upper gastrointestinal hemorrhage (63%) than in those with lower (39%) g...

journal_title：Radiology

authors： Rahn NH 3rd,Tishler JM,Han SY,Russinovich NA

更新日期：1982-05-01 00:00:00

abstract：:Midline activity low in the pelvis seen on Ga-67 scans is frequently attributed to colonic excretion of radionuclide. We have seen two cases of infectious prostatitis with focal uptake of Ga-67 within the prostate gland. We describe a technique of using limited quantities of barium administered by enema and appropriat...

journal_title：Radiology

authors： Sullivan WT,Rosen PR,Weiland FL,Ritchey ML

更新日期：1984-08-01 00:00:00

abstract：PURPOSE:To assess SH U 508A in the diagnosis of suspected renal arterial stenosis by means of ultrasonography (US) and to confirm the safety of SH U 508A in a clinical setting. MATERIALS AND METHODS:A randomized crossover study was performed in 198 patients from 14 European centers who were referred for renal arterial...

journal_title：Radiology

authors： Claudon M,Plouin PF,Baxter GM,Rohban T,Devos DM

更新日期：2000-03-01 00:00:00

abstract：:For measurement of poststenotic jet velocities with magnetic resonance (MR) imaging, the authors reduced the echo time (TE) of the field even-echo rephasing (FEER) velocity mapping sequence from 14.0 to 3.6 msec, so minimizing the problem of MR signal loss from turbulent fluid. In vitro use of rotating disk and stenot...

journal_title：Radiology

authors： Kilner PJ,Firmin DN,Rees RS,Martinez J,Pennell DJ,Mohiaddin RH,Underwood SR,Longmore DB

更新日期：1991-01-01 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：:Bladder tumors initially may be diagnosed by excretory urography in patients undergoing the examination because of specific symptoms or unrelated complaints. Among seven strategies tested by six experienced readers, the combination of early, full-bladder, and postvoiding anteroposterior radiographs was most successful...

journal_title：Radiology

authors： Hillman BJ,Silvert M,Cook G,Stanisic T,Bjelland J,Claypool HR,Haber K,Mellins HZ

更新日期：1981-02-01 00:00:00

abstract：PURPOSE:To evaluate the effect of a computer-aided diagnosis (CAD) system on the diagnostic performance of radiologists for the estimation of the malignancy of pulmonary nodules on thin-section helical computed tomographic (CT) scans. MATERIALS AND METHODS:The institutional review board approved use of the CT database...

journal_title：Radiology

authors： Awai K,Murao K,Ozawa A,Nakayama Y,Nakaura T,Liu D,Kawanaka K,Funama Y,Morishita S,Yamashita Y

更新日期：2006-04-01 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：:The CT scans of 18 patients with documented pulmonary septic emboli were reviewed. CT features of septic emboli included multiple peripheral nodules ranging in size from 0.5 to 3.5 cm (15 of 18 patients [83%]), a feeding vessel sign (n = 12; [67%]), cavitation (n = 9; [50%]), wedge-shaped peripheral lesions abutting t...

journal_title：Radiology

authors： Kuhlman JE,Fishman EK,Teigen C

更新日期：1990-01-01 00:00:00

abstract：PURPOSE:To compare areas of contrast material enhancement in the prostate at ultrasonography (US) with whole-mount radical prostatectomy specimens to determine if the use of contrast material improves the detection rate of prostate cancer. MATERIALS AND METHODS:Transrectal US was performed in 12 subjects with cancer o...

journal_title：Radiology

authors： Halpern EJ,McCue PA,Aksnes AK,Hagen EK,Frauscher F,Gomella LG

更新日期：2002-02-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate imaging characteristics of surgically proved sublabral recesses and labral tears in the anterior portion of the acetabulum at magnetic resonance (MR) arthrography. MATERIALS AND METHODS:Institutional review board approval was obtained; informed consent was waived. The study included...

journal_title：Radiology

authors： Studler U,Kalberer F,Leunig M,Zanetti M,Hodler J,Dora C,Pfirrmann CW

更新日期：2008-12-01 00:00:00

abstract：PURPOSE:To compare the association between neurodevelopmental outcome in neonates with hypoxic-ischemic encephalopathy following perinatal asphyxia and (a) apparent diffusion coefficients (ADCs) in the thalamus and basal ganglia at diffusion-weighted (DW) magnetic resonance (MR) imaging and (b) hydrogen 1 (¹H) MR spect...

journal_title：Radiology

authors： Alderliesten T,de Vries LS,Benders MJ,Koopman C,Groenendaal F

更新日期：2011-10-01 00:00:00

abstract：:Growth deformities of the distal femur and unusual gait disturbances were observed in four girls who had had neonatal osteomyelitis and septic arthritis. In each case apparent absence or hypoplasia of one of the femoral condyles, as seen on plain radiographs, was associated with marked genu varum or genu valgum. Arthr...

journal_title：Radiology

authors： Singson RD,Berdon WE,Feldman F,Denton JR,Abramson S,Baker DH

更新日期：1986-11-01 00:00:00

abstract：:Although intravascular foreign bodies are routinely removed with percutaneous extraction, surgical retrieval is performed of most nonvascular foreign bodies. The authors describe six cases in which percutaneous extraction was performed for removal of nonvascular foreign bodies. These foreign bodies included an intraab...

journal_title：Radiology

authors： Nosher JL,Siegel R

更新日期：1993-06-01 00:00:00

abstract：:The chest radiographs of asthmatic patients in an emergency room setting over a four-year period were reviewed. A total of 997 radiographs was reviewed; radiographic findings were compared with history and clinical data. In adults 2.2% of the radiographs were abnormal; in children 13%. It is concluded that a chest rad...

journal_title：Radiology

authors： Zieverink SE,Harper AP,Holden RW,Klatte EC,Brittain H

更新日期：1982-10-01 00:00:00

abstract：PURPOSE:To prospectively evaluate the learning curves and reading times of inexperienced readers who used the virtual dissection reading method for retrospective computed tomographic (CT) colonography data sets, with and without concurrent computer-aided detection (CAD). MATERIALS AND METHODS:An Institutional Review B...

journal_title：Radiology

authors： Hock D,Ouhadi R,Materne R,Aouchria AS,Mancini I,Broussaud T,Magotteaux P,Nchimi A

更新日期：2008-09-01 00:00:00

abstract：PURPOSE:To establish whether early use of magnetic resonance (MR) imaging or computed tomography (CT) influences treatment and outcome of patients with low back pain (LBP) and whether it is cost-effective. MATERIALS AND METHODS:In a multicenter randomized study, two imaging policies for LBP were compared in 782 partic...

journal_title：Radiology

authors： Gilbert FJ,Grant AM,Gillan MG,Vale LD,Campbell MK,Scott NW,Knight DJ,Wardlaw D,Scottish Back Trial Group.

更新日期：2004-05-01 00:00:00

abstract：:Computed tomography (CT) was compared with chest radiography in the assessment of disease severity in 27 patients with sarcoidosis. The CT scans and radiographs were each read twice by two independent observers. Disease extent was assessed on CT scans by visual scoring (0%-100% involvement of the lung parenchyma) and ...

journal_title：Radiology

authors： Müller NL,Mawson JB,Mathieson JR,Abboud R,Ostrow DN,Champion P

更新日期：1989-06-01 00:00:00

abstract：PURPOSE:To assess the ability of an extravasation detection accessory (EDA) to detect clinically important (> or = 10 mL) extravascular injection of iodinated contrast material delivered with an automated power injector. MATERIALS AND METHODS:Five hundred patients referred for contrast material-enhanced body computed ...

journal_title：Radiology

authors： Birnbaum BA,Nelson RC,Chezmar JL,Glick SN

更新日期：1999-08-01 00:00:00

abstract：PURPOSE:To examine the feasibility and safety of magnetic resonance (MR)-guided biopsy by using a transgluteal approach in patients with suspicious prostate lesions by using an MR-compatible robotic system and a 1.5-T MR system. MATERIALS AND METHODS:The study was approved by the institutional review board of Universi...

journal_title：Radiology

authors： Zangos S,Melzer A,Eichler K,Sadighi C,Thalhammer A,Bodelle B,Wolf R,Gruber-Rouh T,Proschek D,Hammerstingl R,Müller C,Mack MG,Vogl TJ

更新日期：2011-06-01 00:00:00

abstract：:A reciprocating Bucky design for serial film changers is described. It is simple to construct. Inexpensive, and enhances radiograph resolution by eliminating grid lines. ...

journal_title：Radiology

authors： Becker JA,Heiferman S

更新日期：1977-10-01 00:00:00

abstract：:The authors obtained sagittal magnetic resonance (MR) images twice a week from six healthy women during one full menstrual cycle to establish the changes depicted in the uterine layers. Parallel endocrine and ultrasound studies were used to establish the day of ovulation precisely. Consistent changes in the thickness ...

journal_title：Radiology

authors： Haynor DR,Mack LA,Soules MR,Shuman WP,Montana MA,Moss AA

更新日期：1986-11-01 00:00:00

abstract：:Background Cardiac MRI late gadolinium enhancement (LGE) scar volume is an important marker for outcome prediction in patients with hypertrophic cardiomyopathy (HCM); however, its clinical application is hindered by a lack of measurement standardization. Purpose To develop and evaluate a three-dimensional (3D) convolu...

journal_title：Radiology

authors： Fahmy AS,Neisius U,Chan RH,Rowin EJ,Manning WJ,Maron MS,Nezafat R

更新日期：2020-01-01 00:00:00

abstract：:It appears reasonable to suggest a histological diagnosis of ependymoma when CT shows an isodense tumor expanding the fourth ventricle or lying within its outlets; when the tumor contains small, round calcifications; and when presentation occurs early in life. An isodense mass occurring in the cerebral white matter, c...

journal_title：Radiology

authors： Swartz JD,Zimmerman RA,Bilaniuk LT

更新日期：1982-04-01 00:00:00

abstract：PURPOSE:To test, by using an electrotransfer protocol for the transfection of skeletal muscle with naked plasmid complementary DNA, whether in vivo magnetic resonance (MR) imaging can help delineate either the spatial extent of the electric field when contrast agent is injected intraperitoneally or the transfection are...

journal_title：Radiology

authors： Paturneau-Jouas M,Parzy E,Vidal G,Carlier PG,Wary C,Vilquin JT,de Kerviler E,Schwartz K,Leroy-Willig A

更新日期：2003-09-01 00:00:00

abstract：:A review of the sonographic findings in 17 children with non-inflammatory neck masses suggests that while ultrasound is nonspecific with regard to the differential diagnosis, it can show whether a mass is cystic, solid, or complex. Sonography is also useful in clarifying the anatomical extent of a lesion and involveme...

journal_title：Radiology

authors： Friedman AP,Haller JO,Goodman JD,Nagar H

更新日期：1983-06-01 00:00:00