Dynamic computed tomography in the evaluation of vascular lung lesions.

abstract：:Phantom and in vitro studies were performed to evaluate the potential application of digital circular tomosynthesis in imaging of the breast and upper cervical spine. A prototype volumetric x-ray system was used to image a mammographic phantom, a fresh mastectomy specimen, and a head phantom containing the upper cervi...

journal_title：Radiology

authors： Stevens GM,Birdwell RL,Beaulieu CF,Ikeda DM,Pelc NJ

更新日期：2003-08-01 00:00:00

abstract：:Twenty pigs underwent (a) cystic duct occlusion by means of fluoroscopically guided transcatheter endoluminal bipolar radio-frequency (RF) electrocoagulation and (b) gallbladder sclerotherapy with one of two different regimens of ethanol and sodium tetradecyl-sulfate (STS). Serum ethanol levels and hepatic enzyme test...

journal_title：Radiology

authors： Becker CD,Quenville NF,Burhenne HJ

更新日期：1989-04-01 00:00:00

abstract：:Four new cases of scimitar syndrome illustrate the complex derangement of the right lung architecture. Computed tomography (CT) helped in demonstrating the hyparterial relationship of the right bronchus to the pulmonary artery, the course and termination of the scimitar vein, the mediastinal shift, unusual fissures, a...

journal_title：Radiology

authors： Godwin JD,Tarver RD

更新日期：1986-04-01 00:00:00

abstract：PURPOSE:To prospectively evaluate fluorine 18 ((18)F) 2-fluoropropionyl-labeled PEGylated dimeric arginine-glycine-aspartic acid (RGD) peptide (PEG3-E[c{RGDyk}]2) (FPPRGD2) positron emission tomography (PET) in patients with glioblastoma multiforme (GBM). MATERIALS AND METHODS:The institutional review board approved t...

journal_title：Radiology

authors： Iagaru A,Mosci C,Mittra E,Zaharchuk G,Fischbein N,Harsh G,Li G,Nagpal S,Recht L,Gambhir SS

更新日期：2015-11-01 00:00:00

abstract：:A surviving case of infantile hepatic hemangioendothelioma is presented. The patient was treated with a combination of radiation therapy, cytotoxan, and prednisone, resulting in regression of the tumor. ...

journal_title：Radiology

authors： Tewfik H,Latourette H,Christie JH,Tewfik F

更新日期：1977-06-01 00:00:00

abstract：:Large, multiloculated abscesses can be difficult to drain percutaneously. The authors describe a technique for disrupting septations within an abscess cavity to provide more complete and effective drainage. It has been successfully performed in four patients. ...

journal_title：Radiology

authors： Lieberman RP,Hahn FJ,Imray TJ,Phalen JT

更新日期：1986-12-01 00:00:00

abstract：:Technically refined angiograms and scintigrams were extremely sensitive in demonstrating experimental canine thromboemboli, both immediately after embolization and during the entire course of embolic lysis. Technical refinements included subselective, scintigraphically guided, magnification arteriography and eight-vie...

journal_title：Radiology

authors： Bookstein JJ,Feigin DS,Seo KW,Alazraki NP

更新日期：1980-07-01 00:00:00

abstract：:Many physico-anatomic variables and instrument parameters influence the relative magnetic resonance signal intensity of vascular channels. The interaction of these mechanisms is complex, but their composite effects can be accounted for by two main categories of flow phenomena: time-of-flight effects and spin-phase cha...

journal_title：Radiology

authors： Kucharczyk W,Kelly WM,Davis DO,Norman D,Newton TH

更新日期：1986-12-01 00:00:00

abstract：:Medical therapy is standard for intrahepatic amebic abscess and generally is effective. However, we have encountered a group of patients in whom percutaneous aspiration and drainage was indicated due to uncertainty of diagnosis or clinical deterioration of the patient. Twenty such patients underwent percutaneous drain...

journal_title：Radiology

authors： vanSonnenberg E,Mueller PR,Schiffman HR,Ferrucci JT Jr,Casola G,Simeone JF,Cabrera OA,Gosink BB

更新日期：1985-09-01 00:00:00

abstract：:Between January 1981 and June 1990, 36 previously untreated patients with squamous cancer of the base of the tongue were treated with radiation therapy. This therapy consisted of a 5,000-5,400-cGy external beam plus a 2,000-3,000-cGy boost to the base of the tongue with an iridium-192 implant. Necks with negative node...

journal_title：Radiology

authors： Harrison LB,Zelefsky MJ,Sessions RB,Fass DE,Armstrong JG,Pfister DG,Strong EW

更新日期：1992-07-01 00:00:00

abstract：:Various whole-body, multiple-field, electron-beam therapy techniques are analyzed. Accelerator characteristics, various dosimetric techniques, and experimental setup are described. A flattening filter was constructed which produced an uncollimated electron-beam profile (4 MeV) with a uniformity of +/- 8% across a 200-...

journal_title：Radiology

authors： Tetenes PJ,Goodwin PN

更新日期：1977-01-01 00:00:00

abstract：:The authors present 3 cases of surgically proved Klatskin tumor diagnosed by ultrasound alone. Sonographic features of these tumors include (a) dilatation of the intrahepatic biliary ducts but not the extrahepatic duct, (b) non-union of the right and left hepatic ducts, and (c) small, solid masses at the hepatic hilus...

journal_title：Radiology

authors： Meyer DG,Weinstein BJ

更新日期：1983-09-01 00:00:00

abstract：:The authors describe a method of enhancing the ease of lumbar puncture in the morbidly obese patient. In their experience, the coaxial needle technique shortens fluoroscopic and total procedure times when obtaining cerebrospinal fluid for laboratory analysis or when performing myelography. ...

journal_title：Radiology

authors： Johnson JC,Deeb ZL

更新日期：1991-06-01 00:00:00

abstract：:The negative predictive value (PV-) and positive predictive value (PV+) of gallium-67 scintigraphy and computed tomography (CT) were compared after treatment in 43 patients with Hodgkin disease and in 56 patients with non-Hodgkin lymphoma. The usefulness of these studies in predicting survival was also evaluated. In p...

journal_title：Radiology

authors： Front D,Ben-Haim S,Israel O,Epelbaum R,Haim N,Even-Sapir E,Kolodny GM,Robinson E

更新日期：1992-02-01 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 pathologic specimens and magnetic resonance (MR) images of 53 patients with clinically palpable prostate cancer confined to one lobe were studied to evaluate the ability of MR imaging to depict clinically nonpalpable prostate cancer. All patients had undergone imaging with a 1.5-T imager with T1- and T2-weighted s...

journal_title：Radiology

authors： Carter HB,Brem RF,Tempany CM,Yang A,Epstein JI,Walsh PC,Zerhouni EA

更新日期：1991-02-01 00:00:00

abstract：:During 1989 and 1990, 25,788 screening and 1,077 diagnostic breast imaging examinations were performed. Audit was performed in 6-month intervals to allow comparison of performance over time. Sensitivity, positive predictive value, and stage of disease were determined for each radiologist, for patients over and those u...

journal_title：Radiology

authors： Robertson CL

更新日期：1993-04-01 00:00:00

abstract：PURPOSE:To investigate the effect of a meal on splanchnic circulation in patients with cirrhosis of the liver. MATERIALS AND METHODS:Ten adult patients with cirrhosis and 10 adult control subjects (mean age, 54 years) underwent duplex ultrasonography. Flow volumes of the portal vein, superior mesenteric artery, spleni...

journal_title：Radiology

authors： Iwao T,Toyonaga A,Oho K,Sakai T,Tayama C,Masumoto H,Sato M,Nakahara K,Tanikawa K

更新日期：1996-12-01 00:00:00

abstract：:Five hundred celiac angiograms were reviewed to evaluate the frequency of clinically significant variations in the origin of the left gastric artery. In 13 of 500 cases, the left gastric artery arose anomalously most often as a direct branch of the aorta; in 14 of 500 cases, the left gastric artery primarily supplied ...

journal_title：Radiology

authors： Naidich JB,Naidich TP,Sprayregen S,Hyman RA,Pudlowski RM,Stein HL

更新日期：1978-03-01 00:00:00

abstract：:Purpose To determine if the allergic-like breakthrough reaction rate of intravenous corticosteroid prophylaxis administered 5 hours before contrast material-enhanced computed tomography (CT) is noninferior to that of a traditional 13-hour oral regimen. Materials and Methods Institutional review board approval was obta...

journal_title：Radiology

authors： Mervak BM,Cohan RH,Ellis JH,Khalatbari S,Davenport MS

更新日期：2017-11-01 00:00:00

abstract：:The authors describe the use of neodymium yttrium aluminum garnet laser introduced via a percutaneous catheter track for photocoagulation of a bleeding bile duct tumor. ...

journal_title：Radiology

authors： Carpenter CM,Bowers JH,Luers PR,Dixon JA,Miller FJ

更新日期：1983-09-01 00:00:00

abstract：:Enlarged gastroesophageal veins were successfully obliterated in 41 patients using embolization with modified autogenous clots and/or Gelfoam, balloon occlusion, iatrogenic perivenous hematoma, sclerosing agents (Sotradecol and Keflin), or a combination of these methods. Thirteen patients were actively bleeding when s...

journal_title：Radiology

authors： Pereiras R,Viamonte M Jr,Russell E,LePage J,White P,Hutson D

更新日期：1977-08-01 00:00:00

abstract：:Possible signs of paratracheal lymphadenopathy on the posteroanterior (PA) chest radiograph were assessed in 98 patients and correlated with computed tomography (CT). The nodes were normal in size in 62 patients and enlarged (greater than 15 mm) in 36. Among the latter group, widening of the right paratracheal stripe ...

journal_title：Radiology

authors： Müller NL,Webb WR,Gamsu G

更新日期：1985-09-01 00:00:00

abstract：:In diagnostic radiology, the routine measurement of exposure levels for a reference patient is an important part of an effective quality assurance program. In the United States, chest radiography is the most frequent examination and has the lowest exposure level of all radiologic examinations. We estimated the amount ...

journal_title：Radiology

authors： Butler PF,Conway BJ,Suleiman OH,Koustenis GH,Showalter CK

更新日期：1985-08-01 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 validate accuracy of diagnosis of developmental dysplasia of the hip (DDH) from geometric properties of acetabular shape extracted from three-dimensional (3D) ultrasonography (US). Materials and Methods In this retrospective multi-institutional study, 3D US was added to conventional two-dimensional (2D) US ...

journal_title：Radiology

authors： Zonoobi D,Hareendranathan A,Mostofi E,Mabee M,Pasha S,Cobzas D,Rao P,Dulai SK,Kapur J,Jaremko JL

更新日期：2018-06-01 00:00:00

abstract：PURPOSE:To determine whether any initial reductions in cardiovascular reserve (CVR) normalize after carotid revascularization and-because reduced CVR represents a risk factor for ischemic events-whether patients who develop periinterventional infarction have more severely reduced pretreatment CVR than those who do not....

journal_title：Radiology

authors： Haller S,Bonati LH,Rick J,Klarhöfer M,Speck O,Lyrer PA,Bilecen D,Engelter ST,Wetzel SG

更新日期：2008-10-01 00:00:00

abstract：PURPOSE:To determine conversion factors for the new International Commission on Radiological Protection (ICRP) publication 103 recommendations for adult and pediatric patients and to compare the effective doses derived from Monte Carlo calculations with those derived from dose-length product (DLP) for different body re...

journal_title：Radiology

authors： Deak PD,Smal Y,Kalender WA

更新日期：2010-10-01 00:00:00

abstract：:To investigate spatial resolution requirements for digitized portal images in radiation therapy, observer performance tests were performed. One hundred twenty portal images were digitized with sampling frequencies of 0.700, 0.350, and 0.175 mm for observation. Receiver operating characteristic analysis was used to det...

journal_title：Radiology

authors： Okajima K,Nagata Y,Mitsumori M,Ishigaki T,Kimura I,Nakano Y,Minato K,Komori M,Sato K,Takahashi T

更新日期：1992-05-01 00:00:00

abstract：PURPOSE:To compare the use of dynamic oxygen-enhanced magnetic resonance (MR) imaging with the use of quantitatively assessed computed tomography (CT) for assessment of clinical stage and evaluation of pulmonary functional change due to treatment in patients with asthma. MATERIALS AND METHODS:The institutional review ...

journal_title：Radiology

authors： Ohno Y,Nishio M,Koyama H,Seki S,Yoshikawa T,Matsumoto S,Obara M,van Cauteren M,Sugimura K

更新日期：2014-12-01 00:00:00