Lung cancer staging and management: comparison of contrast-enhanced and nonenhanced helical CT of the thorax.

abstract：:A systems approach was employed to improve results of the single-contrast barium enema examination for detection of colonic polyps. Improvements were made in each of the following areas: radiographic-fluoroscopic equipment, fluoroscopic-television images, screen-film combinations, barium suspensions, examination techn...

journal_title：Radiology

authors： Gelfand DW,Chen YM,Ott DJ

更新日期：1987-08-01 00:00:00

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：PURPOSE:To assess whether ultrasonography (US)-based real-time elastography (RTE) can be used to detect gut fibrosis. MATERIALS AND METHODS:In this institutional review board-approved, prospective, proof-of-concept study, unaffected and affected gut segments in 10 patients with Crohn disease (four women, six men; medi...

journal_title：Radiology

authors： Baumgart DC,Müller HP,Grittner U,Metzke D,Fischer A,Guckelberger O,Pascher A,Sack I,Vieth M,Rudolph B

更新日期：2015-06-01 00:00:00

abstract：PURPOSE:To evaluate the effect of computer-aided diagnosis (CAD) on radiologists' detection of pulmonary nodules. MATERIALS AND METHODS:Fifty chest computed tomographic (CT) examination cases were used. The mean nodule size was 0.81 cm +/- 0.60 (SD) (range, 0.3-2.9 cm). Alternative free-response receiver operating cha...

journal_title：Radiology

authors： Awai K,Murao K,Ozawa A,Komi M,Hayakawa H,Hori S,Nishimura Y

更新日期：2004-02-01 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：:Background Impaired brain development in fetuses with congenital heart disease (CHD) may result from inadequate cerebral oxygen supply in utero. Purpose To test whether fetal cerebral oxygenation can be increased by maternal oxygen administration, effects of maternal hyperoxia on blood oxygenation of the placenta and ...

journal_title：Radiology

authors： You W,Andescavage NN,Kapse K,Donofrio MT,Jacobs M,Limperopoulos C

更新日期：2020-01-01 00:00:00

abstract：PURPOSE:To evaluate the accuracy of scintimammography as an adjunct to physical examination and mammography in the detection of breast cancer in women with dense and fatty breasts. MATERIALS AND METHODS:A total of 558 women were prospectively enrolled from 42 centers in North America. Images were interpreted by reader...

journal_title：Radiology

authors： Khalkhali I,Baum JK,Villanueva-Meyer J,Edell SL,Hanelin LG,Lugo CE,Taillefer R,Freeman LM,Neal CE,Scheff AM,Connolly JL,Schnitt SJ,Houlihan MJ,Sampalis JS,Haber SB

更新日期：2002-01-01 00:00:00

abstract：PURPOSE:To compare specific findings at T1-weighted gradient-echo (GRE) magnetic resonance (MR) imaging performed after administration of superparamagnetic iron oxide (SPIO) with nontumorous regional portal perfusion abnormalities seen at computed tomography (CT) during arterial portography (CTAP). MATERIALS AND METHO...

journal_title：Radiology

authors： Scharf J,Hoffmann V,Lehnert T,Anselm H,Richter GM,Kauffmann GW

更新日期：1998-04-01 00:00:00

abstract：:The purpose of this study was to develop an automated scheme to facilitate detection of localized ground-glass opacity (GGO) in the lung at computed tomography (CT). Institutional review board approval and informed consent were not required. Two radiologists reviewed CT images from 14 patients (five men, nine women) w...

journal_title：Radiology

authors： Kim KG,Goo JM,Kim JH,Lee HJ,Min BG,Bae KT,Im JG

更新日期：2005-11-01 00:00:00

abstract：PURPOSE:To describe the timeliness of follow-up care in community-based settings among women who receive a recommendation for immediate follow-up during the screening mammography process and how follow-up timeliness varies according to facility and facility-level characteristics. MATERIALS AND METHODS:This was an inst...

journal_title：Radiology

authors： Rosenberg RD,Haneuse SJ,Geller BM,Buist DS,Miglioretti DL,Brenner RJ,Smith-Bindman R,Taplin SH,Breast Cancer Surveillance Consortium.

更新日期：2011-11-01 00:00:00

abstract：:During the past few years, several articles have appeared in the scientific literature that predict thousands of cancers and cancer deaths per year in the U.S. population caused by medical imaging procedures that use ionizing radiation. These predictions are computed by multiplying small and highly speculative risk fa...

journal_title：Radiology

authors： Hendee WR,O'Connor MK

更新日期：2012-08-01 00:00:00

abstract：:Perfusion computed tomography (CT) is a relatively new technique that allows rapid qualitative and quantitative evaluation of cerebral perfusion by generating maps of cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT). The technique is based on the central volume principle (CBF = CBV/M...

journal_title：Radiology

authors： Hoeffner EG,Case I,Jain R,Gujar SK,Shah GV,Deveikis JP,Carlos RC,Thompson BG,Harrigan MR,Mukherji SK

更新日期：2004-06-01 00:00:00

abstract：:A summary of the activities of the International Commission on Radiation Units and Measurements since 1973 is presented. ...

journal_title：Radiology

authors： Wyckoff HO

更新日期：1978-05-01 00:00:00

abstract：:In two pathologically documented cases of renal cell carcinoma, the appearance of the tumors at magnetic resonance (MR) imaging was markedly hypointense relative to normal renal parenchyma on both T1- and T2-weighted spin-echo images. Pathologic examination of both tumors revealed diffuse iron scattered throughout the...

journal_title：Radiology

authors： Sussman SK,Glickstein MF,Krzymowski GA

更新日期：1990-11-01 00:00:00

abstract：PURPOSE:To compare the accuracy of magnetic resonance (MR) imaging with that of the current clinical standard of endoscopy and endoscopic biopsy, to determine whether MR imaging depicts subclinical cancers missed at endoscopy and endoscopic biopsy, and to determine whether MR imaging can identify patients without nasop...

journal_title：Radiology

authors： King AD,Vlantis AC,Bhatia KS,Zee BC,Woo JK,Tse GM,Chan AT,Ahuja AT

更新日期：2011-02-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate the sensitivity and specificity of 64-detector computed tomography (CT) in the portal venous phase by using transverse images and both multiplanar and minimum intensity reformations for the detection of biliary duct narrowing and choledocholithiasis, with magnetic resonance cholangio...

journal_title：Radiology

authors： Anderson SW,Rho E,Soto JA

更新日期：2008-05-01 00:00:00

abstract：PURPOSE:To prospectively compare single- and multisection computed tomographic (CT) perfusion for tumor blood flow determination in an animal model. MATERIALS AND METHODS:All animal protocols and experiments were approved by the institutional animal care and use committee before the study was initiated. R3230 mammary ...

journal_title：Radiology

authors： Hakimé A,Peddi H,Hines-Peralta AU,Wilcox CJ,Kruskal J,Lin S,de Baere T,Raptopoulos VD,Goldberg SN

更新日期：2007-06-01 00:00:00

abstract：:Positive-mode xeroradiography is an excellent method of visualizing soft-tissue structures in mammography and other procedures; however, toner deletions over a large area may preclude adequate delineation of the soft tissues near high-density structures such as bone. Use of the negative mode in the development cycle p...

journal_title：Radiology

authors： Osterman FA Jr,Zeman GH,Rao GU,Gayler B,Kirk BG,James AE Jr

更新日期：1977-09-01 00:00:00

abstract：PURPOSE:To investigate contralateral breast biopsy histologic findings in women with breast cancer. MATERIALS AND METHODS:Histologic findings in 237 patients with breast cancer who underwent contralateral breast biopsy for clinically or mammographically detected abnormalities were retrospectively reviewed. Malignant f...

journal_title：Radiology

authors： Roubidoux MA,Helvie MA,Wilson TE,Lai NE,Paramagul C

更新日期：1997-06-01 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：:Gold, silver and lead thioglucose were evaluated in rodents to determine the value of organo-metallic compounds in the study of metabolic abnormalities. Increased radioactivity concentration was noted in the hypothalamus with all compounds. Gold thioglucose concentrated in the kidneys and thymus, and 203Pb-thioglucose...

journal_title：Radiology

authors： Atkins HL,Lambrecht RM,Wolf AP,Ansari AN,Guillaume M

更新日期：1975-06-01 00:00:00

abstract：:Background Patients with wrist trauma and negative findings on radiographs often undergo additional MRI examinations to assess for radiographically occult fractures. Dual-energy CT may be more readily available than MRI in some settings. Purpose To evaluate the diagnostic test accuracy of dual-energy CT in helping det...

journal_title：Radiology

authors： Müller FC,Gosvig KK,Børgesen H,Gade JS,Brejnebøl M,Rodell A,Nèmery M,Boesen M

更新日期：2020-09-01 00:00:00

abstract：:Three cases of talocalcaneal coalition were evaluated with routine radiography, conventional tomography, 99mTc-MDP bone scintigraphy, and computed tomography (CT). Routine radiography was normal in 1 case and demonstrated secondary findings suggesting coalition in 2. Conventional tomography confirmed the coalition in ...

journal_title：Radiology

authors： Deutsch AL,Resnick D,Campbell G

更新日期：1982-07-01 00:00:00

abstract：:Kinetics of an iodinated contrast medium were evaluated quantitatively as a function of time up to one hour after intravenous infusion in the brains of dogs with experimentally induced radiation damage and dogs with spontaneous brain tumor. Radiation damage was characterized by an increase in iodine accumulation soon ...

journal_title：Radiology

authors： Fike JR,Cann CE

更新日期：1984-04-01 00:00:00

abstract：:Purpose To determine the association between the administration of the macrocyclic contrast medium gadobutrol and T1 relaxation time in the brains of patients with normal renal function by using multidynamic multiecho (MDME) magnetic resonance (MR) imaging sequences. Materials and Methods The institutional review boar...

journal_title：Radiology

authors： Kang KM,Choi SH,Hwang M,Yun TJ,Kim JH,Sohn CH

更新日期：2018-04-01 00:00:00

abstract：PURPOSE:To determine the visibility of presumably excised lesions on screen-film mammograms obtained after biopsy and to determine the accuracy of clip deployment on the basis of measurements obtained on routine pre- and postbiopsy mammograms. MATERIALS AND METHODS:One hundred eleven cases of core-needle biopsy with c...

journal_title：Radiology

authors： Rosen EL,Vo TT

更新日期：2001-02-01 00:00:00

abstract：PURPOSE:To determine the reliability and accuracy of magnetic resonance (MR) arthrography for the diagnosis of superior labral anterior posterior (SLAP) tears. MATERIALS AND METHODS:The MR arthrograms in 80 patients who underwent arthroscopy and MR arthrography during a 54-month period were retrospectively reviewed. M...

journal_title：Radiology

authors： Jee WH,McCauley TR,Katz LD,Matheny JM,Ruwe PA,Daigneault JP

更新日期：2001-01-01 00:00:00

abstract：:Radiographic and bone mineral (BM) data were collected over a three-year period on 195 patients with chronic renal failure. Most women maintained BM on dyalysis, whereas 44% of the men lost BM (p less than 0.05). Following transplantation, 86% of the patients either maintained or restored BM. After parathyroidectomy, ...

journal_title：Radiology

authors： Griffiths HJ,Zimmerman RE,Lazarus M,Lowrie E,Gottlieb MN,Phillips E,Pomerantz K

更新日期：1977-03-01 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：:Dilatation of the aortic root, outlined by a periaortic fat layer, was observed in 19 of 25 successive cases of aneurysm of the ascending aorta. In one of these cases the aneurysm was entirely confined to the aortic root. In two other cases the aneurysms could not be detected on standard chest radiographs judged in th...

journal_title：Radiology

authors： Szamosi A

更新日期：1981-03-01 00:00:00