Detection of choledocholithiasis: comparison of unenhanced helical CT and endoscopic retrograde cholangiopancreatography.

abstract：:Percentage of stenosis of a vascular lumen was quantitated using a digital subtraction angiography system with videodensitometric analysis. To validate the algorithm and methods, we used precisely drilled Lucite rods of three inner diameters and various reduced diameters to give known luminal reduction. Both in vitro ...

journal_title：Radiology

authors： Seibert JA,Link DP,Hines HH,Baltaxe HA

更新日期：1985-12-01 00:00:00

abstract：:Pseudostenosis of the rectosigmoid colon due to compression by a dilated urinary bladder may pose a diagnostic problem. Although probably quite common, it has not received much attention in the radiological literature. Four cases are presented and the radiological features on barium enema are described. ...

journal_title：Radiology

authors： Kleinhaus U,Kaftori J

更新日期：1978-06-01 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 compare various subjective, empiric, and pharmacokinetic methods for interpreting findings at dynamic magnetic resonance (MR) imaging of the breast. MATERIALS AND METHODS:Dynamic spiral breast MR imaging was performed in 52 women suspected of having or with known breast disease. Gadolinium-enhanced images w...

journal_title：Radiology

authors： Daniel BL,Yen YF,Glover GH,Ikeda DM,Birdwell RL,Sawyer-Glover AM,Black JW,Plevritis SK,Jeffrey SS,Herfkens RJ

更新日期：1998-11-01 00:00:00

abstract：:Gated radionuclide imaging with 99mTc-labeled red blood cells was employed to assess changes in right atrial (RA) volume in 17 subjects. Studies were repeated within two hours in five of 12 normal subjects and at two and ten days after infarction in five patients. Time-activity curves were generated for the RA and rig...

journal_title：Radiology

authors： Marmor A,Biello DR,Sampathkumaran KS,Geltman EM,Siegel BA,Roberts R

更新日期：1981-06-01 00:00:00

abstract：:Complications of indwelling ureteral stents were managed percutaneously in 13 patients. These complications consisted of three fractured, three heavily encrusted, and seven migrated stents. While most ureteral stent malfunctions are routinely managed with retrograde techniques, the percutaneous approach allows effecti...

journal_title：Radiology

authors： LeRoy AJ,Williams HJ Jr,Segura JW,Patterson DE,Benson RC Jr

更新日期：1986-01-01 00:00:00

abstract：PURPOSE:To compare the stress experienced by women who had false-positive screening mammograms and had undergone immediate on-site diagnostic imaging evaluation with that experienced by those who had been recalled for subsequent imaging. MATERIALS AND METHODS:A retrospective survey was mailed to women with false-posit...

journal_title：Radiology

authors： Lindfors KK,O'Connor J,Parker RA

更新日期：2001-01-01 00:00:00

abstract：:Purpose To compare the diagnostic performance of minimally invasive autopsy with that of conventional autopsy. Materials and Methods For this prospective, single-center, cross-sectional study in an academic hospital, 295 of 2197 adult cadavers (mean age: 65 years [range, 18-99 years]; age range of male cadavers: 18-99...

journal_title：Radiology

authors： Blokker BM,Weustink AC,Wagensveld IM,von der Thüsen JH,Pezzato A,Dammers R,Bakker J,Renken NS,den Bakker MA,van Kemenade FJ,Krestin GP,Hunink MGM,Oosterhuis JW

更新日期：2018-12-01 00:00:00

abstract：:In a phantom and in 37 patients, a simple laser guidance system for computed tomography (CT)-guided procedures used the software program of the CT scanner and a laser beam mounted on the CT gantry without need for additional software or components. The skin entry point and angulation of the target path were determined...

journal_title：Radiology

authors： Miaux Y,Guermazi A,Gossot D,Bourrier P,Angoulvant D,Khairoune A,Turki C,Bouché E

更新日期：1995-01-01 00:00:00

abstract：PURPOSE:To determine the feasibility of a statistical classification strategy (SCS) and the identity of metabolites of bacterial and host origins that potentially contributed to the most discriminatory regions of magnetic resonance (MR) spectra from Staphylococcus aureus abscesses of biopsy material from controls, glio...

journal_title：Radiology

authors： Himmelreich U,Accurso R,Malik R,Dolenko B,Somorjai RL,Gupta RK,Gomes L,Mountford CE,Sorrell TC

更新日期：2005-07-01 00:00:00

abstract：:Radiologic evaluation of frontal sinus fractures is instrumental in determining the need for surgery. Computed tomography (CT) is an excellent modality for evaluation of frontal sinus trauma, particularly for anterior and posterior wall fractures. However, fractures of the nasofrontal duct are more difficult to deline...

journal_title：Radiology

authors： Harris L,Marano GD,McCorkle D

更新日期：1987-10-01 00:00:00

abstract：:Alterations in gastric physiology caused by selective embolization and vasopressin infusion of the left gastric artery were evaluated in 29 dogs. Gastric acidity was not significantly altered following Gelfoam embolization but decreased sharply with vasopressin infusion. These results suggest that the segmental occlus...

journal_title：Radiology

authors： Chuang VP,Reuter SR,Cho KJ,Schmidt RW

更新日期：1976-09-01 00:00:00

abstract：:Forty-four pathologically proved mammary carcinomas were studied by clinical examination, xeroradiography, and ultrasonography with a dedicated whole-breast scanner. Abnormalities reflecting carcinoma were shown by echography in 90% of cases and xeromammography in 97%. Ultrasonic manifestations of malignancy were sepa...

journal_title：Radiology

authors： Maturo VG,Zusmer NR,Gilson AJ,Bear B

更新日期：1982-03-01 00:00:00

abstract：PURPOSE:To evaluate the elasticity of the coracohumeral ligament (CHL) in healthy individuals and patients with clinical findings suggestive of unilaterally involved adhesive capsulitis of the shoulder (ACS). MATERIALS AND METHODS:The institutional review board approved this single-institution prospective study, which...

journal_title：Radiology

authors： Wu CH,Chen WS,Wang TG

更新日期：2016-02-01 00:00:00

abstract：PURPOSE:To prospectively evaluate whether the characteristics of hepatic blood flow change during the early stages of fibrosis in patients with nonalcoholic fatty liver disease (NAFLD). MATERIALS AND METHODS:All participants provided written informed consent, and the study protocols were approved by the institutional ...

journal_title：Radiology

authors： Hirooka M,Koizumi Y,Miyake T,Ochi H,Tokumoto Y,Tada F,Matsuura B,Abe M,Hiasa Y

更新日期：2015-02-01 00:00:00

abstract：:The computed tomographic (CT) scans of 45 patients (30 adults, 15 children) with cerebral cysticercosis were reviewed. These patients had undergone complete diagnostic evaluations including skin tests, laboratory tests, plain skull radiography, radionuclide brain scanning, CT, and cerebral angiography. All of these te...

journal_title：Radiology

authors： Byrd SE,Locke GE,Biggers S,Percy AK

更新日期：1982-09-01 00:00:00

abstract：:A survey of the members of the Society for Pediatric Radiology indicates that currently the majority of pediatric radiologists do not perform or interpret examinations using radionuclides, ultrasound, or computed tomography (CT). A decisive factor determining involvement with these techniques is the type of institutio...

journal_title：Radiology

authors： Leonidas JC,McCauley RG,Faerber EN

更新日期：1981-01-01 00:00:00

abstract：:High-resolution computed tomography (CT) was correlated with pulmonary function tests in the evaluation of regional emphysema in 59 smokers. The lung was divided into upper (above the carina tracheae) and lower (below the carina tracheae) zones, and the degree of emphysema was graded with a subjective and an objective...

journal_title：Radiology

authors： Gurney JW,Jones KK,Robbins RA,Gossman GL,Nelson KJ,Daughton D,Spurzem JR,Rennard SI

更新日期：1992-05-01 00:00:00

abstract：PURPOSE:To determine whether polytetrafluoroethylene (PTFE) stent-grafts yield longer patency for creation or revision of transjugular intrahepatic portosystemic shunts (TIPS). MATERIALS AND METHODS:Fourteen PTFE-covered Wallstents were placed in 13 patients with TIPS: seven at shunt creation and seven during revision...

journal_title：Radiology

authors： Haskal ZJ

更新日期：1999-12-01 00:00:00

abstract：:The effect of transient renal ischemia on renal concentration and distribution of 99mTc-HEDP, 99mTc-DMSA, and 99mTc-DTPA was compared in rabbits with acute tubular necrosis. Scintigrams were obtained after injection in normal rabbits or ones with unilateral or bilateral ischemia. 99mTc-HEDP concentration in ischemic t...

journal_title：Radiology

authors： Lavelle KJ,Park HM,Moseman AM,Lewis S

更新日期：1979-05-01 00:00:00

abstract：PURPOSE:To evaluate retrospectively the presence of complete relaxation of the lower esophageal sphincter (LES) at manometry in patients with achalasia depicted on barium esophagograms. MATERIALS AND METHODS:The institutional review board approved this retrospective study and did not require informed consent. A search...

journal_title：Radiology

authors： Amaravadi R,Levine MS,Rubesin SE,Laufer I,Redfern RO,Katzka DA

更新日期：2005-06-01 00:00:00

abstract：PURPOSE:To evaluate with sonography the normal development of the fetal cerebellum in the second trimester. MATERIALS AND METHODS:The study included all patients undergoing second trimester genetic amniocentesis who had structurally normal fetuses, in whom the posterior fossa was adequately seen and in whom the karyot...

journal_title：Radiology

authors： Bromley B,Nadel AS,Pauker S,Estroff JA,Benacerraf BR

更新日期：1994-12-01 00:00:00

abstract：:Subtraction radiography permits the use of 7-10 times less contrast material than is required without subtraction techniques. The first-order, second-order, and composite mask techniques are described and evaluated. While the second-order technique gives more complete cancellation of common structures, the more common...

journal_title：Radiology

authors： Ort MG,Gregg EC,Kaufman B

更新日期：1977-07-01 00:00:00

abstract：:Hirschprung disease is usually diagnosed in infancy. Occasionally patients reach adulthood without diagnosis or treatment. Four cases of adult Hirschprung disease are described. The principal radiographic findings are a markedly dilated, feces-filled colon above the zone of transition; a narrowed rectum; a cone- or fu...

journal_title：Radiology

authors： Mindelzun RE,Hicks SM

更新日期：1986-09-01 00:00:00

abstract：:The angiographic appearance in a patient with multiple bile-duct hamartomas of the liver is described. The lesions showed abnormal vascularity, consisting of grapelike clusters of small rings, which could be confused with other benign and malignant conditions demonstrable by angiography; however, it may ultimately pro...

journal_title：Radiology

authors： McLoughlin MJ,Phillips MJ

更新日期：1975-07-01 00:00:00

abstract：:A new technique for embolization with compressed Ivalon plugs is described. Fourteen arteries--six renal, three splenic, two pulmonary, one left gastric, and two abdominal aortas--were occluded in six dogs. In one case of renal artery embolization, three plugs were used, and in one case of abdominal aorta embolization...

journal_title：Radiology

authors： Zollikofer C,Castaneda-Zuniga WR,Galliani C,Rysavy JA,Formanek A,Amplatz K

更新日期：1980-09-01 00:00:00

abstract：:Differences in magnetic resonance (MR) imaging signal-to-noise (S/N) performance between saddle-shaped and solenoidal coils have been postulated. Each coil shape is tied to a particular magnetic field configuration, so that they are not typically interchangeable except in special situations. The solenoidal coil is pre...

journal_title：Radiology

authors： Arakawa M,Crooks LE,McCarten B,Hoenninger JC,Watts JC,Kaufman L

更新日期：1985-01-01 00:00:00

abstract：PURPOSE:To prospectively compare nonenhanced magnetic resonance (MR) imaging and ultrasonography (US) for the diagnosis of pediatric appendicitis. MATERIALS AND METHODS:This HIPAA-compliant study was approved by the institutional review board, and written informed consent was obtained from the patient's parent or guar...

journal_title：Radiology

authors： Orth RC,Guillerman RP,Zhang W,Masand P,Bisset GS 3rd

更新日期：2014-07-01 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：PURPOSE:To use Prospective Investigation of Pulmonary Embolism Diagnosis (PIOPED) II data to retrospectively determine sensitivity and specificity of ventilation-perfusion (V/Q) scintigraphic studies categorized as pulmonary embolism (PE) present or PE absent and the proportion of patients for whom these categories app...

journal_title：Radiology

authors： Sostman HD,Stein PD,Gottschalk A,Matta F,Hull R,Goodman L

更新日期：2008-03-01 00:00:00