CT fluoroscopy--guided interventional procedures: techniques and radiation dose to radiologists.

abstract：PURPOSE:To provide a broad perspective concerning the recent use of receiver operating characteristic (ROC) analysis in medical imaging by reviewing ROC studies published in Radiology between 1997 and 2006 for experimental design, imaging modality, medical condition, and ROC paradigm. MATERIALS AND METHODS:Two hundred...

journal_title：Radiology

authors： Shiraishi J,Pesce LL,Metz CE,Doi K

更新日期：2009-12-01 00:00:00

abstract：PURPOSE:To compare the capability to aid prediction of clinical outcome measures, including progression-free survival (PFS) and overall survival (OS), between volumetric estimates from contrast material-enhanced (CE) T1-weighted subtraction maps and traditional segmentation in a randomized multicenter clinical trial of...

journal_title：Radiology

authors： Ellingson BM,Kim HJ,Woodworth DC,Pope WB,Cloughesy JN,Harris RJ,Lai A,Nghiemphu PL,Cloughesy TF

更新日期：2014-04-01 00:00:00

abstract：:Magnetic resonance (MR) images in the sagittal plane display the lengths of the parahippocampal gyrus, subiculum, dentate gyrus, hippocampus, fimbria, fornix, hippocampal fissure, choroidal fissure, and temporal horn, and the anatomic relationships of these structures to the surrounding brain. Correlation of these ima...

journal_title：Radiology

authors： Naidich TP,Daniels DL,Haughton VM,Pech P,Williams A,Pojunas K,Palacios E

更新日期：1987-03-01 00:00:00

abstract：:Three significantly different lateral approaches to the cervical subarachnoid space (anterior, midplane, and posterior needle positions) have been previously described for cordotomy and myelography. Experimental lateral C1-2 punctures were performed by each of these three methods in anatomic specimens, cadaver models ...

journal_title：Radiology

authors： Orrison WW,Eldevik OP,Sackett JF

更新日期：1983-02-01 00:00:00

abstract：:A 40-year-old man with a history of tuberculosis developed massive hemoptysis. Embolization of a bronchial artery branch did not resolve the bleeding. Selective angiography eventually revealed three pseudoaneurysms arising from an apical segmental branch of the right pulmonary artery, two of which were successfully em...

journal_title：Radiology

authors： Santelli ED,Katz DS,Goldschmidt AM,Thomas HA

更新日期：1994-11-01 00:00:00

abstract：:Acentric chromosome fragments produced in cells by irradiation or other agents give rise to micronuclei in daughter cells. The micronuclei can be counted readily in large numbers of cells which provides a sensitive measure of chromosome aberrations. Previous studies have shown that the presence of contrast material en...

journal_title：Radiology

authors： Cochran ST,Khodadoust A,Norman A

更新日期：1980-07-01 00:00:00

abstract：:Preliminary results indicate that film dosimetry is a simple and precise method of determining volume dose distributions. Calculated dose distributions using computers or estimations of surface dose using TLD dosimeters are within 5% of the measured dose. Initial attempts to find suitable alternate techniques tailored...

journal_title：Radiology

authors： Mansfield CM,Ayyangar K,Suntharalingam N

更新日期：1976-09-01 00:00:00

abstract：PURPOSE:To prospectively evaluate airway wall thickness and lung attenuation at spirometrically gated thin-section computed tomography (CT) in patients with chronic obstructive pulmonary disease (COPD) and to correlate gated CT findings with pulmonary function test (PFT) results. MATERIALS AND METHODS:The ethical comm...

journal_title：Radiology

authors： Orlandi I,Moroni C,Camiciottoli G,Bartolucci M,Pistolesi M,Villari N,Mascalchi M

更新日期：2005-02-01 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 evaluate the performance of the 2010 Society of Radiologists in Ultrasound (SRU) consensus guidelines in the risk stratification of symptomatic and asymptomatic adnexal cysts. Materials and Methods An institutional review board-approved retrospective review was performed, including adnexal cysts detected wi...

journal_title：Radiology

authors： Maturen KE,Blaty AD,Wasnik AP,Patel-Lippmann K,Robbins JB,Barroilhet L,Huffman LB,Sadowski EA

更新日期：2017-11-01 00:00:00

abstract：PURPOSE:To determine if the intradecidual sign at sonography is effective in the diagnosis of early intrauterine pregnancy. MATERIALS AND METHODS:In 102 pregnant patients, transvaginal sonography revealed an intrauterine fluid collection without a yolk sac or embryo. Four observers (experienced sonologist, body imagin...

journal_title：Radiology

authors： Laing FC,Brown DL,Price JF,Teeger S,Wong ML

更新日期：1997-09-01 00:00:00

abstract：:The authors report a case of subacute spinal subdural hematoma in a patient with ankylosing spondylitis. Only 18 such cases have been reported in the nonradiological literature. Early diagnosis is imperative in order to minimize neurological sequelae. ...

journal_title：Radiology

authors： Sokoloff J,Coel MN,Ignelzi RJ

更新日期：1976-07-01 00:00:00

abstract：PURPOSE:To assess the usefulness of sonography performed by radiologists after a review of the sonographer's findings. MATERIALS AND METHODS:A total of 398 sonograms were obtained in 392 patients. Sonographers presented preliminary images and impressions to radiologists, who performed additional imaging and recorded t...

journal_title：Radiology

authors： Tessler FN,Tublin ME,Peters JC,Jie T,Peters TL

更新日期：1996-05-01 00:00:00

abstract：:Two patients with cystic fibrosis and pancreatic cystosis are described who had complete replacement of the pancreas by multiple macroscopic cysts. The possible causes and clinical significance of this condition are discussed. ...

journal_title：Radiology

authors： Hernanz-Schulman M,Teele RL,Perez-Atayde A,Zollars L,Levine J,Black P,Kuligowska E

更新日期：1986-03-01 00:00:00

abstract：:Methyl glucamine sodium diatrizoate (Renografin 76) was directly infused into the isolated arteries to the sino-atrial and atrioventricular nodes of anesthetized dogs, causing a dose-related inhibition of sino-atrial nodal automaticity and atrioventricular nodal conductivity; these effects were not attenuated by auton...

journal_title：Radiology

authors： Higgins CB,Feld GK

更新日期：1976-10-01 00:00:00

abstract：PURPOSE:To assess the decisions made by uroradiologists regarding choice of type of intravenous contrast material (low-osmolar contrast media [LOCM] vs conventional ionic agents) and frequency of use of corticosteroid prophylaxis. MATERIALS AND METHODS:A questionnaire was mailed to 158 members of the Society of Urorad...

journal_title：Radiology

authors： Cohan RH,Ellis JH,Dunnick NR

更新日期：1995-02-01 00:00:00

abstract：:Radiologic education, research, and the practice of radiology will be of the highest quality in the future if academic departments stress organ-system subspecialization while continuing to integrate and interface with technique-based specialists. Planning should begin now to effect an orderly progression to an organ-s...

journal_title：Radiology

authors： Hartman GW,McClennan BL,Pfister RC

更新日期：1986-02-01 00:00:00

abstract：PURPOSE:To prospectively evaluate to what extent image quality in 16-detector row computed tomographic (CT) coronary angiography is a function of the heart rate and the image reconstruction technique used. MATERIALS AND METHODS:A total of 70 patients (49 men, 21 women; mean age, 59.1 years +/- 5.8 [standard deviation]...

journal_title：Radiology

authors： Herzog C,Arning-Erb M,Zangos S,Eichler K,Hammerstingl R,Dogan S,Ackermann H,Vogl TJ

更新日期：2006-01-01 00:00:00

abstract：PURPOSE:To determine the feasibility of measuring choline and glycogen concentrations in normal human liver in vivo with proton (hydrogen 1 [1H]) magnetic resonance (MR) spectroscopy. MATERIALS AND METHODS:Signed consent to participate in an institutional review board-approved and HIPAA-compliant study was obtained fr...

journal_title：Radiology

authors： Ouwerkerk R,Pettigrew RI,Gharib AM

更新日期：2012-11-01 00:00:00

abstract：PURPOSE:To measure both volume and signal intensity of the fetal lung at magnetic resonance (MR) imaging and to evaluate the clinical use of this method to predict fetal pulmonary hypoplasia. MATERIALS AND METHODS:A total of 87 fetuses evaluated with MR imaging at 24-39 weeks of gestation were classified into a contro...

journal_title：Radiology

authors： Osada H,Kaku K,Masuda K,Iitsuka Y,Seki K,Sekiya S

更新日期：2004-06-01 00:00:00

abstract：PURPOSE:To determine the transvaginal hysterosonographic appearances of benign and malignant endometrial disease. MATERIALS AND METHODS:From April 11, 1994, through August 1, 1996, a total of 88 women (age range, 25-81 years) underwent transvaginal hysterosonography and histopathologic evaluation of the endometrium af...

journal_title：Radiology

authors： Dubinsky TJ,Stroehlein K,Abu-Ghazzeh Y,Parvey HR,Maklad N

更新日期：1999-02-01 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

abstract：PURPOSE:To determine the ability of ultrasonography (US)-guided spectroscopic photoacoustic (sPA) imaging to depict changes in blood oxygen saturation (SO2) in metastatic lymph nodes of a mouse model of oral cancer. MATERIALS AND METHODS:All studies were performed by following protocols approved by the institutional a...

journal_title：Radiology

authors： Luke GP,Emelianov SY

更新日期：2015-11-01 00:00:00

abstract：:Eight patients with liver disease and seriously abnormal blood coagulation underwent biopsy of the liver performed through a percutaneously introduced sheath, followed by embolization of the biopsy track with steel coils. In all cases the biopsy procedure produced profuse bleeding through the sheath. However, the blee...

journal_title：Radiology

authors： Allison DJ,Adam A

更新日期：1988-10-01 00:00:00

abstract：:Purpose To determine the prevalence of the spot sign and the accuracy of using the spot sign to predict intracerebral hemorrhage (ICH) expansion with standardized multiphase computed tomographic (CT) angiography. Materials and Methods This prospective observational cohort study included 123 consecutive patients with a...

journal_title：Radiology

authors： Rodriguez-Luna D,Coscojuela P,Rodriguez-Villatoro N,Juega JM,Boned S,Muchada M,Pagola J,Rubiera M,Ribo M,Tomasello A,Demchuk AM,Goyal M,Molina CA

更新日期：2017-12-01 00:00:00

abstract：:Background Thermal ablation of cancers may be associated with high rates of local tumor progression. A thermal accelerant gel has been developed to improve the transmission of microwave energy in biologic tissues with the aim of enlarging the thermal ablation zone. Purpose To determine the effects of a thermal acceler...

journal_title：Radiology

authors： Maxwell AWP,Park WKC,Baird GL,Martin DW,Lombardo KA,Dupuy DE

更新日期：2019-05-01 00:00:00

abstract：PURPOSE:To evaluate gadolinium-enhanced three-dimensional magnetic resonance (MR) angiography for thoracic aortic disease and to compare this technique with conventional thoracic MR imaging. MATERIALS AND METHODS:One hundred eight consecutive patients underwent 122 thoracic MR examinations, including conventional MR i...

journal_title：Radiology

authors： Krinsky GA,Rofsky NM,DeCorato DR,Weinreb JC,Earls JP,Flyer MA,Galloway AC,Colvin SB

更新日期：1997-01-01 00:00:00

abstract：PURPOSE:To investigate the implications of mistaking the medial surface of the cerebral hemisphere for the medial wall of the lateral ventricle at antenatal ultrasonography (US) and to identify US clues that might help avoid this interpretive error. MATERIALS AND METHODS:In 50 second- and third-trimester fetuses, a di...

journal_title：Radiology

authors： Hertzberg BS,Kliewer MA,Bowie JD

更新日期：1997-12-01 00:00:00

abstract：:History A 43-year-old right-handed man presented with a history of progressive mild left-sided weakness and slowness of movements. Symptoms began 4 years earlier, and the patient noticed a progressive decline in his daily routine due to gait difficulties in the past year. There was no history of head trauma, surgery, ...

journal_title：Radiology

authors： Vale TC,de Lima Pinto FC,Pedroso JL,Alves Dos Reis M,Batista IR,Affonseca Bressan R,Magalhães Rivero RL,Mendonça RA,Barsottini OG

更新日期：2017-05-01 00:00:00

abstract：:Periportal low attenuation, defined as a low-attenuation rim around the portal vein and its branches that is seen on contrast material-enhanced computed tomographic (CT) scans, has been described in a variety of conditions in adults. The authors reviewed the appearance of periportal low attenuation on CT scans of 30 c...

journal_title：Radiology

authors： Siegel MJ,Herman TE

更新日期：1992-06-01 00:00:00