Comet-tail artifact from cholesterol crystals: observations in the postlithotripsy gallbladder and an in vitro model.

abstract：:A new nonionic dimeric contrast medium (CM), iodixanol, was intravenously administered to 40 healthy male volunteers in doses of 0.3-1.2 g of iodine per kilogram of body weight, nonionic monomeric iopamidol and iopentol were administered to 20 others, and the renal effects were studied up to 120 hours after administra...

journal_title：Radiology

authors： Jakobsen JA,Lundby B,Kristoffersen DT,Borch KW,Hald JK,Berg KJ

更新日期：1992-02-01 00:00:00

abstract：PURPOSE:To evaluate the effectiveness, cost, and cost-effectiveness of using renal mass biopsy to guide treatment decisions for small incidentally detected renal tumors. MATERIALS AND METHODS:A decision-analytic Markov model was developed to estimate life expectancy and lifetime costs for patients with small (< or = 4...

journal_title：Radiology

authors： Pandharipande PV,Gervais DA,Hartman RI,Harisinghani MG,Feldman AS,Mueller PR,Gazelle GS

更新日期：2010-09-01 00:00:00

abstract：:It is usually easy to distinguish the round nipple shadow from a lesion, especially by means of repeat radiographs with nipple markers. However, the radiologist must occasionally interpret a round density in the lower chest on the basis of a single radiograph or series of radiographs. Fortunately, a nipple shadow usua...

journal_title：Radiology

authors： Ferris RA,White AF

更新日期：1976-11-01 00:00:00

abstract：:The effects of increasing single selective doses of prostaglandin E1 (PGE1) on superior mesenteric arterial flow and portal and systemic blood pressures were studied in dogs to assess its value as a vasodilatory agent for pharmacoangiography. PGE1 consistently increased blood flow, with an average increase of 187%, bu...

journal_title：Radiology

authors： Cho KJ,Chuang VP,Reuter SR

更新日期：1975-07-01 00:00:00

abstract：:The diagnosis of lumbar nerve root entrapment was made by sector computed tomography (CT) scanning in 25 patients whose myelograms were normal at the site of the CT scan abnormalities. Sector CT scanning demonstrates preoperatively which neural foramina are narrow. This information, correlated with the patient's histo...

journal_title：Radiology

authors： Risius B,Modic MT,Hardy RW Jr,Duchesneau PM,Weinstein MA

更新日期：1982-04-01 00:00:00

abstract：:Magnetic resonance images of cranial bone marrow in 238 patients (246 examinations) less than 25 years old were reviewed to establish normal age-related standards. Bone marrow in the clivus and calvaria had uniformly low signal intensity (grade 1) on T1-weighted images in most infants less than 1 year old. The number ...

journal_title：Radiology

authors： Okada Y,Aoki S,Barkovich AJ,Nishimura K,Norman D,Kjos BO,Brasch RC

更新日期：1989-04-01 00:00:00

abstract：:Eleven cases of superior mesenteric artery embolization are presented. The extent of bowel necrosis was found to be related to two major factors: the site of occlusion and the elapsed time between the onset of symptoms and definitive therapy. Angiography, available on an emergency basis, provides a definitive diagnosi...

journal_title：Radiology

authors： Kaufman SL,Harrington DP,Siegelman SS

更新日期：1977-09-01 00:00:00

abstract：:A modified transfemoral technique for testicular venography and occlusion of the testicular vein (TV) was used to treat 30 patients with a total of 43 varicoceles (17 left-sided and 13 bilateral). Occlusion was satisfactory in all left varicoceles and 90% of right varicoceles. This coaxial technique facilitates subsel...

journal_title：Radiology

authors： Berkman WA,Price RB,Wheatley JK,Fajman WA,Sones PJ,Casarella WJ

更新日期：1984-04-01 00:00:00

abstract：:Between 1956 and 1978, nine patients with solitary plasmacytoma of bone (SPB) and seven with extramedullary plasmacytoma (EMP) were treated at the University of Washington Hospital and Swedish Tumor Institute. All but one patient had local radiotherapy. In the SPB group, six of nine patients progressed to multiple mye...

journal_title：Radiology

authors： Tong D,Griffin TW,Laramore GE,Kurtz JM,Russell AH,Groudine MT,Herron T,Blasko JC,Tesh DW

更新日期：1980-04-01 00:00:00

abstract：:The effect of nuclear magnetic resonance (NMR) imaging on six representative cardiac pacemakers was studied. The results indicate that the threshold for initiating the asynchronous mode of a pacemaker is 17 gauss. Radiofrequency levels are present in an NMR unit and may confuse or possibly inhibit demand pacemakers, a...

journal_title：Radiology

authors： Pavlicek W,Geisinger M,Castle L,Borkowski GP,Meaney TF,Bream BL,Gallagher JH

更新日期：1983-04-01 00:00:00

abstract：:Doppler sonography and magnetic resonance (MR) angiography were prospectively used in combination as a substitute for conventional angiography in 24 consecutive patients likely to undergo carotid endarterectomy. Of 19 patients (20 lesions) who underwent carotid endarterectomy, 18 had not undergone preoperative angiogr...

journal_title：Radiology

authors： Polak JF,Kalina P,Donaldson MC,O'Leary DH,Whittemore AD,Mannick JA

更新日期：1993-02-01 00:00:00

abstract：PURPOSE:To prospectively compare the reproducibility of normal liver apparent diffusion coefficient (ADC) measurements by using different respiratory motion compensation techniques with multiple breath-hold (MBH), free-breathing (FB), respiratory-triggered (RT), and navigator-triggered (NT) diffusion-weighted (DW) imag...

journal_title：Radiology

authors： Chen X,Qin L,Pan D,Huang Y,Yan L,Wang G,Liu Y,Liang C,Liu Z

更新日期：2014-04-01 00:00:00

abstract：:Background Acute stroke because of basilar artery occlusion (BAO) represents 1% of all ischemic strokes. However, recanalization rates and treatment outcome for the different pathologic subtypes of BAO stroke are not fully understood. Purpose To compare the recanalization rate and clinical outcomes of mechanical throm...

journal_title：Radiology

authors： Baik SH,Park HJ,Kim JH,Jang CK,Kim BM,Kim DJ

更新日期：2019-06-01 00:00:00

abstract：PURPOSE:To quantify cephalocaudal gradient of lung inflation in acute lung injury in a dog model in prone versus supine position. MATERIALS AND METHODS:Experiments were performed in accordance with Guide for the Care and Use of Laboratory Animals, as approved by National Research Council (National Institutes of Health...

journal_title：Radiology

authors： Lee HJ,Im JG,Goo JM,Kim YI,Lee MW,Ryu HG,Bahk JH,Yoo CG

更新日期：2005-01-01 00:00:00

abstract：:Eleven hundred sixty-three patients with squamous cell carcinoma of the upper respiratory and digestive tracts, treated from January 1948 through December 1965, had no evidence of disease five years after the initial treatment and no other manifestation of squamous cell carcinoma within the first five years. After fiv...

journal_title：Radiology

authors： Kogelnik HD,Fletcher GH,Jesse RH

更新日期：1975-05-01 00:00:00

abstract：:Purpose To develop multiparametric magnetic resonance (MR) imaging models to generate a quantitative, user-independent, voxel-wise composite biomarker score (CBS) for detection of prostate cancer by using coregistered correlative histopathologic results, and to compare performance of CBS-based detection with that of s...

journal_title：Radiology

authors： Metzger GJ,Kalavagunta C,Spilseth B,Bolan PJ,Li X,Hutter D,Nam JW,Johnson AD,Henriksen JC,Moench L,Konety B,Warlick CA,Schmechel SC,Koopmeiners JS

更新日期：2016-06-01 00:00:00

abstract：PURPOSE:To validate three previously identified quantitative image features across multiparametric magnetic resonance (MR) images acquired with imagers made by two different manufacturers to differentiate prostate cancer (PC) from normal prostatic tissue and to assess cancer aggressiveness. MATERIALS AND METHODS:This ...

journal_title：Radiology

authors： Peng Y,Jiang Y,Antic T,Giger ML,Eggener SE,Oto A

更新日期：2014-05-01 00:00:00

abstract：PURPOSE:To evaluate the safety and efficacy of gadoxetic acid disodium-enhanced magnetic resonance (MR) imaging for the detection of focal liver lesions, with results of histopathologic examination and/or intraoperative ultrasonography used as a standard of reference. MATERIALS AND METHODS:One hundred sixty-nine patie...

journal_title：Radiology

authors： Huppertz A,Balzer T,Blakeborough A,Breuer J,Giovagnoni A,Heinz-Peer G,Laniado M,Manfredi RM,Mathieu DG,Mueller D,Reimer P,Robinson PJ,Strotzer M,Taupitz M,Vogl TJ,European EOB Study Group.

更新日期：2004-01-01 00:00:00

abstract：:Multi-detector row computed tomography was performed for the preharvest evaluation of 14 potential living liver donors. Both a biliary contrast agent and a conventional iodinated contrast agent were administered intravenously. This protocol included acquisition of three subsequent scans and allowed accurate assessment...

journal_title：Radiology

authors： Schroeder T,Nadalin S,Stattaus J,Debatin JF,Malagó M,Ruehm SG

更新日期：2002-08-01 00:00:00

abstract：:In hepatic tumors seen in children, treatment and prognosis differ from tumor to tumor and thus accurate determination of their extent and characteristics is important. Evaluation by gray scale ultrasonography, radionuclide imaging and angiography has produced definable characteristics for the various tumor types and ...

journal_title：Radiology

authors： Miller JH,Gates GF,Stanley P

更新日期：1977-08-01 00:00:00

abstract：PURPOSE:To present prevalence screening data from a nonrandomized screening trial by using low-dose computed tomography (CT) and a simple algorithm based on the size and attenuation of detected nodules to guide diagnostic work-up. MATERIALS AND METHODS:Eight hundred seventeen asymptomatic volunteers (age range, 40-78 ...

journal_title：Radiology

authors： Diederich S,Wormanns D,Semik M,Thomas M,Lenzen H,Roos N,Heindel W

更新日期：2002-03-01 00:00:00

abstract：:In the redistribution of cells through the division cycle between dose fractions, the sensitizing effect is greatest when small doses per fraction are used. Since nonproliferating tissues limit the dose in radiotherapy and will not be sensitized by redistribution, the more the dose is fractionated and the lower the do...

journal_title：Radiology

authors： Withers HR

更新日期：1975-01-01 00:00:00

abstract：:The inflammatory effects of fallopian tube catheterization and selective injection of seven contrast agents (ethiodized oil, diatrizoate meglumine 52%, diatrizoate meglumine 66%, iothalamate meglumine 60%, iopamidol, ioxitol, and ioxaglate) were evaluated in 88 rabbits. The contrast agent used was randomly selected an...

journal_title：Radiology

authors： Thurmond AS,Hedgpeth PL,Scanlan RM

更新日期：1991-07-01 00:00:00

abstract：: Online supplemental material is available for this article. ...

journal_title：Radiology

authors： Kandemirli SG,Dogan L,Sarikaya ZT,Kara S,Akinci C,Kaya D,Kaya Y,Yildirim D,Tuzuner F,Yildirim MS,Ozluk E,Gucyetmez B,Karaarslan E,Koyluoglu I,Demirel Kaya HS,Mammadov O,Kisa Ozdemir I,Afsar N,Citci Yalcinkaya B,Rasi

更新日期：2020-10-01 00:00:00

abstract：:Otosclerosis (otospongiosis) is a primary focal disease of the labyrinthine capsule. The stapes footplate is fixed when the spongiotic focus expands and invades the oval window. Persons with stapedial otosclerosis experience a progressive conductive hearing loss. In many cases, cochlear degeneration is observed, in wh...

journal_title：Radiology

authors： Mafee MF,Henrikson GC,Deitch RL,Norouzi P,Kumar A,Kriz R,Valvassori GE

更新日期：1985-09-01 00:00:00

abstract：:The effect of fasting on gallbladder opacification during oral cholecystography was studied in 10 normal volunteers using 2 oral cholecystographic agents, iopanoic acid and sodium tryopanoate. Radiographs made 15 hours after ingestion of the contrast agents revealed good opacification of the gallbladder in all subject...

journal_title：Radiology

authors： Loeb PM,Berk RN,Janes JO,Perkin L,Moore J

更新日期：1978-02-01 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：:Forty hepatic abscesses were examined with dynamic computed tomography (CT). A "double target sign," consisting of a hypodense central area surrounded by first a hyperdense ring and then a hypodense zone, seems to be highly suggestive of abscess formation. In 12 cases, the hepatic parenchyma surrounding the lesion dem...

journal_title：Radiology

authors： Mathieu D,Vasile N,Fagniez PL,Segui S,Grably D,Lardé D

更新日期：1985-03-01 00:00:00

abstract：PURPOSE:To determine the proportion of children and young adults in whom the thymus extends superiorly above the level of the manubrium into the anterior cervical tissues on magnetic resonance (MR) imaging studies. MATERIALS AND METHODS:This retrospective study was approved by the institutional review board, and writt...

journal_title：Radiology

authors： Costa NS,Laor T,Donnelly LF

更新日期：2010-07-01 00:00:00

abstract：PURPOSE:To evaluate use of the transjugular intrahepatic portosystemic shunt (TIPS) as a nonsurgical approach for the management of Budd-Chiari syndrome (BCS). MATERIALS AND METHODS:Twelve patients with fulminant (n = 2), subacute (n = 5), or chronic (n = 5) BCS underwent TIPS placement. Hepatic venous obstruction was...

journal_title：Radiology

authors： Blum U,Rössle M,Haag K,Ochs A,Blum HE,Hauenstein KH,Astinet F,Langer M

更新日期：1995-12-01 00:00:00