Biopsy needle characteristics assessed in the laboratory.

abstract：PURPOSE:A prospective study was performed to compare results of computed tomography (CT) and fiberoptic bronchoscopy in diagnosis of cancer in patients with hemoptysis. MATERIALS AND METHODS:Ninety-one patients (64 men, 27 women) with hemoptysis underwent thin-section CT and fiberoptic bronchoscopy. RESULTS:CT scans ...

journal_title：Radiology

authors： Set PA,Flower CD,Smith IE,Chan AP,Twentyman OP,Shneerson JM

更新日期：1993-12-01 00:00:00

abstract：PURPOSE:To outline a quality assessment method with peer review for magnetic resonance (MR) imaging. MATERIALS AND METHODS:Thirty-three providers in the Philadelphia area were rated on a random sample of 132 brain, 124 cervical spine, and 113 lower extremity MR imaging examinations performed during 1990. Blinded peer ...

journal_title：Radiology

authors： Friedman DP,Rosetti GF,Flanders AE,Piccoli CW,Rao VM,Mitchell DG,Tartaglino LM,Gonzalez CF,Schweitzer ME,Mishkin MM

更新日期：1995-07-01 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 individual technical costs of general diagnostic radiographic, ultrasonographic (US), computed tomographic (CT), magnetic resonance (MR) imaging, and scintigraphic examinations and interventional radiology. MATERIALS AND METHODS:The Radiology Cost and Productivity Benchmarking Study method of ...

journal_title：Radiology

authors： Saini S,Seltzer SE,Bramson RT,Levine LA,Kelly P,Jordan PF,Chiango BF,Thrall JH

更新日期：2000-07-01 00:00:00

abstract：:A stereotaxic frame, compatible with digital subtraction angiography, computed tomography, and magnetic resonance imaging, is described along with a set of software programs that run in an independent imaging computer system, as well as in the computers associated with each modality. Plexiglas plates fastened to the s...

journal_title：Radiology

authors： Peters TM,Clark JA,Olivier A,Marchand EP,Mawko G,Dieumegarde M,Muresan LV,Ethier R

更新日期：1986-12-01 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：PURPOSE:To prospectively evaluate the feasibility and clinical value of computed tomography (CT)-guided iodine 125 ((125)I) brachytherapy to treat bilateral lung recurrences from colorectal carcinoma. MATERIALS AND METHODS:This study was approved by Sun Yat-sen University Cancer Center Institutional Review Board and a...

journal_title：Radiology

authors： Wang G,Zhang F,Yang B,Xue J,Peng S,Zhong Z,Zhang T,Lu M,Gao F

更新日期：2016-03-01 00:00:00

abstract：:Transrectal catheter drainage was performed under radiologic guidance in eight patients with deep pelvic abscesses during a 7-month period. One patient underwent two procedures. In five patients, the abscess could not be palpated at rectal examination. Seven procedures were performed with fluoroscopic guidance. Transr...

journal_title：Radiology

authors： Bennett JD,Kozak RI,Taylor BM,Jory TA

更新日期：1992-12-01 00:00:00

abstract：:A hybrid subtraction method to reduce the motion sensitivity of temporal subtraction for intravenous arteriography is described. Hybrid subtraction uses dual-energy scanned projection radiography to provide pre- and post-contrast images with the soft tissues subtracted. These pre- and post-contrast soft-tissue-cancell...

journal_title：Radiology

authors： Brody WR

更新日期：1981-12-01 00:00:00

abstract：:A distinctive type of artifactual extravascular assignment of color was identified in 49 color Doppler ultrasound (US) examinations in 43 patients. This artifact appeared as a random localized mixture of red and blue assigned to perivascular soft tissues; the artifact varied with the cardiac cycle, being most prominen...

journal_title：Radiology

authors： Middleton WD,Erickson S,Melson GL

更新日期：1989-06-01 00:00:00

abstract：:Transducer side lobes consist of multiple low-intensity sound beams located outside of the main ultrasound beam. Although the echoes generated by side lobes originate outside of the main beam, they appear as specular or diffuse artifactual echoes within the beam. They are visible with both static and real-time equipme...

journal_title：Radiology

authors： Laing FC,Kurtz AB

更新日期：1982-12-01 00:00:00

abstract：PURPOSE:To compare conventional and Doppler ultrasound (US) with clinical and biopsy parameters used to assess disease activity and outcome in lupus nephritis and to assess the predictive value of US. MATERIALS AND METHODS:Thirty-four patients with lupus nephritis prospectively underwent laboratory and US analysis at ...

journal_title：Radiology

authors： Platt JF,Rubin JM,Ellis JH

更新日期：1997-04-01 00:00:00

abstract：:A patent umbilical vein is a sonographic sign of portal hypertension. The specificity of the sign is not known. In a review of 12 patients with sonographically demonstrated patency of the umbilical vein, we found two patients in whom no clinical evidence existed to suggest the presence of portal hypertension. In six o...

journal_title：Radiology

authors： Saddekni S,Hutchinson DE,Cooperberg PL

更新日期：1982-11-01 00:00:00

abstract：PURPOSE:To prospectively compare the diagnostic performance of ultrasonography (US) and unenhanced multi-detector row computed tomography (CT) in patients suspected of having acute appendicitis by using surgery or clinical follow-up as the reference standard. MATERIALS AND METHODS:The institutional review board approv...

journal_title：Radiology

authors： Keyzer C,Zalcman M,De Maertelaer V,Coppens E,Bali MA,Gevenois PA,Van Gansbeke D

更新日期：2005-08-01 00:00:00

abstract：:A technique to perform a liver biopsy through the femoral vein with the Mansfield biopsy forceps is described. Nine liver biopsy procedures were performed in seven patients who were considered at high risk of bleeding, precluding a conventional transperitoneal biopsy. The technique is an easy, safe, and well-tolerated...

journal_title：Radiology

authors： Mewissen MW,Lipchik EO,Schreiber ER,Varma RR

更新日期：1988-12-01 00:00:00

abstract：PURPOSE:To assess the value of dynamic magnetic resonance (MR) imaging in patients with mammographically detected suspicious microcalcifications. MATERIALS AND METHODS:Sixty-three patients (age range, 31-84 years; mean age, 56 years) with mammographically suspicious clustered microcalcifications underwent dynamic MR i...

journal_title：Radiology

authors： Westerhof JP,Fischer U,Moritz JD,Oestmann JW

更新日期：1998-06-01 00:00:00

abstract：:Histories, physical examinations and 99mTc-pertechnetate imaging were used to evaluate 1,452 persons who had had x-ray therapy to the neck region for benign conditions 18 to 35 years previously. Thyroid abnormalities were found in 301 patients (21%) and thyroid malignancy was found in 29% of 193 patients with abnormal...

journal_title：Radiology

authors： Arnold J,Pinsky S,Ryo UY,Frohman L,Schneider A,Favus M,Stachura M,Arnold M,Colman M

更新日期：1975-06-01 00:00:00

abstract：PURPOSE:To quantitatively evaluate and validate a two-phase helical computed tomographic (CT) protocol for evaluation of pancreatic tumors. MATERIALS AND METHODS:Twenty-seven patients with pathologically proved pancreatic adenocarcinomas prospectively underwent two-phase CT examination with helical acquisition during ...

journal_title：Radiology

authors： Lu DS,Vedantham S,Krasny RM,Kadell B,Berger WL,Reber HA

更新日期：1996-06-01 00:00:00

abstract：:Using a method combining the velocity of ultrasound and photon absorptiometry in the human radius in vivo, the authors measured the speed of sound in bone (U) and bone mineral content (BMC). From these measurements and a "simple" bone model, they then computed the bone mineral density, compact bone density, and modulu...

journal_title：Radiology

authors： Greenfield MA,Craven JD,Huddleston A,Kehrer ML,Wishko D,Stern R

更新日期：1981-03-01 00:00:00

abstract：:Radiographic findings in 11 proved cases of cytomegalovirus (CMV) colitis were reviewed and correlated with colonoscopic and pathologic findings. Patients were chronically ill homosexual men with multiple systemic opportunistic infections. Endoscopies showed focal or diffuse inflammation, hemorrhagic plaques, and supe...

journal_title：Radiology

authors： Balthazar EJ,Megibow AJ,Fazzini E,Opulencia JF,Engel I

更新日期：1985-06-01 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：:Twenty patients with multiple or recurrent superficial head and facial cancer were treated with low-megavoltage electron-beam therapy, using a readily adaptable polystyrene shield assembly with interchangeable collimators. Patient set-up times were reduced, treatment was simplified, and flexibility of therapy was achi...

journal_title：Radiology

authors： Johnson TS,Garciga CE,Feldman ME,Holcomb MH

更新日期：1975-06-01 00:00:00

abstract：PURPOSE:To evaluate use of transcervical recanalization in patients with reocclusion of the proximal fallopian tube after failed surgery to reverse sterilization or failed tuboplasty to treat inflammatory disease. MATERIALS AND METHODS:The standard technique for transcervical recanalization was attempted in seven pati...

journal_title：Radiology

authors： Lang EK,Dunaway HH

更新日期：1994-05-01 00:00:00

abstract：:Preoperative B-mode ultrasonography was performed on 7 infants who subsequently were surgically proved to have multicystic kidney disease. Five of the 7 showed a characteristic pattern consisting of a predominantly cystic mass containing septa which divided it into cysts of varying sizes. It is concluded that ultrasou...

journal_title：Radiology

authors： Bearman SB,Hine PL,Sanders RC

更新日期：1976-03-01 00:00:00

abstract：PURPOSE:To investigate the effects of increasing doses of angiotensin II on hepatic hemodynamics in the normal rabbit liver and in hepatic VX2 tumors by using dynamic contrast material-enhanced perfusion computed tomography (CT). MATERIALS AND METHODS:This study was approved by the institutional animal care and use co...

journal_title：Radiology

authors： Wright KC,Ravoori MK,Dixon KA,Han L,Singh SP,Liu P,Gupta S,Johnson VE,Kan Z,Kundra V

更新日期：2011-09-01 00:00:00

abstract：:Balloon dilation is a well-described, nonoperative, alternative treatment for postoperative strictures of the colon and rectum. This procedure may not be technically feasible when an occluded lumen prevents passage of a guide wire across the obstruction. The authors describe the use of transrectal ultrasound guidance ...

journal_title：Radiology

authors： Eschelman DJ,Alexander AA,Goldstein SD,Shapiro MJ

更新日期：1993-11-01 00:00:00

abstract：:Multicenter, collaborative studies offer an effective way to meet the growing need for timely and generalizable clinical evaluations of imaging technologies. This article discusses issues of study design, statistical analysis, organization, and day-to-day group operation for collaborative prospective clinical evaluati...

journal_title：Radiology

authors： Gatsonis C,McNeil BJ

更新日期：1990-05-01 00:00:00

abstract：:The importance of axillary node status in the prognosis of breast cancer led the authors to conduct a prospective study comparing the value of clinical examination with ultrasound (US) performed by a transpectoral approach. All 60 patients examined underwent axillary dissection. Sensitivity was 45.4% for clinical exam...

journal_title：Radiology

authors： Bruneton JN,Caramella E,Héry M,Aubanel D,Manzino JJ,Picard JL

更新日期：1986-02-01 00:00:00

abstract：:The authors report a case of renal cell carcinoma in which computed tomography (CT) revealed fatty tissue and calcification within a solid renal mass. The detection of a mass with negative CT numbers at CT and increased echogenicity at ultrasound led to the incorrect diagnosis of angiomyolipoma (renal hamartoma). The ...

journal_title：Radiology

authors： Strotzer M,Lehner KB,Becker K

更新日期：1993-08-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate whether dynamic contrast agent-enhanced (DCE) magnetic resonance (MR) imaging parameters assessed by a computer-aided evaluation program are associated with recurrence-free and overall survival in breast cancer patients who received neoadjuvant chemotherapy (NAC). MATERIALS AND METH...

journal_title：Radiology

authors： Yi A,Cho N,Im SA,Chang JM,Kim SJ,Moon HG,Han W,Park IA,Noh DY,Moon WK

更新日期：2013-09-01 00:00:00