Scanning slit chest radiography: a practical and efficient scatter control design.

abstract：:Recent advances in ultrasound and computed tomography have permitted localization of orbital lesions, and sophisticated high-energy irradiation techniques facilitate improved dose distribution without significant damage to normal tissue. Three patients treated for orbital pseudotumor are discussed. ...

journal_title：Radiology

authors： Kim RY,Roth RE

更新日期：1978-05-01 00:00:00

abstract：PURPOSE:Quantification of regional cerebral blood flow (rCBF) and volume (rCBV) with dynamic magnetic resonance (MR) imaging. MATERIALS AND METHODS:After bolus administration of a paramagnetic contrast medium, rapid T2*-weighted gradient-echo images of two sections were acquired for the simultaneous creation of concen...

journal_title：Radiology

authors： Rempp KA,Brix G,Wenz F,Becker CR,Gückel F,Lorenz WJ

更新日期：1994-12-01 00:00:00

abstract：:One hundred forty patients with testicular seminoma were treated at the State University of New York Health Science Center at Syracuse between 1966 and 1985. Disease was classified as stage II in 32 patients (23%): stage IIA in 21 patients and stage IIB in 11 patients. All patients underwent irradiation below the diap...

journal_title：Radiology

authors： Sagerman RH,Kotlove DJ,Regine WF,Chung CT,King GA,Dalal PS

更新日期：1989-08-01 00:00:00

abstract：PURPOSE:To characterize triangular fibrocartilage (TFC) defects in symptomatic and contralateral asymptomatic wrists. MATERIALS AND METHODS:Communicating and noncommunicating defects of the TFC were depicted on bilateral wrist arthrograms in 56 patients with unilateral wrist pain and without associated lesions of the ...

journal_title：Radiology

authors： Zanetti M,Linkous MD,Gilula LA,Hodler J

更新日期：2000-09-01 00:00:00

abstract：:In the redistribution of cells through the division cycle between dose fractions, the sensitizing effect is greatest when small doses per fraction are used. Since nonproliferating tissues limit the dose in radiotherapy and will not be sensitized by redistribution, the more the dose is fractionated and the lower the do...

journal_title：Radiology

authors： Withers HR

更新日期：1975-01-01 00:00:00

abstract：PURPOSE:To assess the reproducibility and accuracy of volumetric quantifications of articular cartilage in the knee determined with three-dimensional (3D) magnetic resonance (MR) imaging combined with pulsed saturation transfer subtraction (STS) or T1-weighted fat suppression (FS) imaging. MATERIALS AND METHODS:Eight ...

journal_title：Radiology

authors： Peterfy CG,van Dijke CF,Janzen DL,Glüer CC,Namba R,Majumdar S,Lang P,Genant HK

更新日期：1994-08-01 00:00:00

abstract：:Recent reports have indicated that non-contrast material-enhanced scans are of less value than urographic contrast material-enhanced studies in the computed tomographic (CT) evaluation of hepatic metastases. The authors retrospectively reviewed the CT scans of 28 patients with hypervascular liver metastases to determi...

journal_title：Radiology

authors： Bressler EL,Alpern MB,Glazer GM,Francis IR,Ensminger WD

更新日期：1987-01-01 00:00:00

abstract：:Patients who have temporomandibular joint (TMJ) clicking and pain are assumed to have an anterior displacement of the meniscus with reduction on opening of the jaw. On the basis of this assumption, these patients are treated nonsurgically with splint therapy. Of 301 TMJs examined, 108 (36%) produced clinically audible...

journal_title：Radiology

authors： Miller TL,Katzberg RW,Tallents RH,Bessette RW,Hayakawa K

更新日期：1985-01-01 00:00:00

abstract：:Exposure values for a whole-body CT scanner, obtained from a room protection survey covering one month (119 patients), are reported. It was found that weekly exposures could be expected to be in the range of 350-750 mR/week for a daily load of 12 patients. The h.v.l. of gypsum board, lead, and plate glass at this radi...

journal_title：Radiology

authors： Gross GP,McCullough EC

更新日期：1977-03-01 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：:The authors describe three pediatric patients with diffuse pulmonary hemangiomatosis. Virtually identical clinical, radiographic, and pathologic findings were observed in each case. The combination of diffuse interstitial pulmonary infiltration and bloody pleural effusion in a child is pathognomonic. Early recognition...

journal_title：Radiology

authors： Rowen M,Thompson JR,Williamson RA,Wood BJ

更新日期：1978-05-01 00:00:00

abstract：:Both carotid bifurcations were examined in 353 patients over a 20-month interval using a combination of real-time and pulsed Doppler ultrasound (duplex scanning). Angiographic correlation was available in 72 cases. Stenosis of the internal carotid was evaluated using a Doppler input frequency of 5 MHz and a scan angle...

journal_title：Radiology

authors： Jacobs NM,Grant EG,Schellinger D,Byrd MC,Richardson JD,Cohan SL

更新日期：1985-02-01 00:00:00

abstract：:Twenty-three patients with hyperparathyroidism were evaluated preoperatively with magnetic resonance (MR) imaging. Twenty patients also underwent thallium-201/technetium-99m scintigraphy. Of 22 patients with primary hyperparathyroidism, 12 had persistent or recurrent disease. One had secondary hyperparathyroidism due ...

journal_title：Radiology

authors： Peck WW,Higgins CB,Fisher MR,Ling M,Okerlund MD,Clark OH

更新日期：1987-05-01 00:00:00

abstract：PURPOSE:To define the beneficial and detrimental effects of adding exercise to direct magnetic resonance (MR) shoulder arthrography. MATERIALS AND METHODS:Direct, intraarticular, gadolinium arthrography of the shoulder was performed in 41 patients, who underwent 1.5-T MR imaging before and after 1 minute of arm swingi...

journal_title：Radiology

authors： Brenner ML,Morrison WB,Carrino JA,Nusser CA,Sanders TG,Howard RF,Meier P

更新日期：2000-05-01 00:00:00

abstract：:The abdominal computed tomographic (CT) scans from 61 patients with biopsy-proved Helicobacter (formerly Campylobacter) pylori gastritis were retrospectively reviewed. The CT scans were interpreted on the basis of the original report of the findings at CT examination and without knowledge of the results of biopsy. Of ...

journal_title：Radiology

authors： Urban BA,Fishman EK,Hruban RH

更新日期：1991-06-01 00:00:00

abstract：PURPOSE:To retrospectively measure repeat rates for high-cost imaging studies, determining their causes and trends, and the impact of radiologist recommendations for a repeat examination on imaging volume. MATERIALS AND METHODS:This HIPAA-compliant study had institutional review board approval, with waiver of informed...

journal_title：Radiology

authors： Lee SI,Saokar A,Dreyer KJ,Weilburg JB,Thrall JH,Hahn PF

更新日期：2007-03-01 00:00:00

abstract：:Purpose To develop and validate a deep learning algorithm that predicts the final diagnosis of Alzheimer disease (AD), mild cognitive impairment, or neither at fluorine 18 (18F) fluorodeoxyglucose (FDG) PET of the brain and compare its performance to that of radiologic readers. Materials and Methods Prospective 18F-FD...

journal_title：Radiology

authors： Ding Y,Sohn JH,Kawczynski MG,Trivedi H,Harnish R,Jenkins NW,Lituiev D,Copeland TP,Aboian MS,Mari Aparici C,Behr SC,Flavell RR,Huang SY,Zalocusky KA,Nardo L,Seo Y,Hawkins RA,Hernandez Pampaloni M,Hadley D,Franc BL

更新日期：2019-02-01 00:00:00

abstract：PURPOSE:To assess the relationship between imaging findings, therapy, and functional outcome in patients with persistent low back pain who are suspected of having herniated nucleus pulposus. MATERIALS AND METHODS:Data collected during a multicenter, longitudinal study were retrospectively analyzed (n = 1,084). Multiva...

journal_title：Radiology

authors： Ackerman SJ,Steinberg EP,Bryan RN,BenDebba M,Long DM

更新日期：1997-06-01 00:00:00

abstract：:Results of transrectal ultrasound (TRUS) of the prostate and pathologic examination of specimens obtained at transurethral resection of the prostate (TURP) were compared in 29 patients with clinical stage A adenocarcinoma. Ten specimens contained no residual tumors larger than 5 mm in diameter; in the remaining 19 gla...

journal_title：Radiology

authors： Sheth S,Hamper UM,Walsh PC,Holtz PM,Epstein JI

更新日期：1991-04-01 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：PURPOSE:To determine, with arterial spin labeling (ASL) perfusion magnetic resonance (MR) imaging and physostigmine challenge, if abnormal hippocampal blood flow in ill Gulf War veterans persists 11 years after initial testing with single photon emission computed tomography and nearly 20 years after the 1991 Gulf War. ...

journal_title：Radiology

authors： Li X,Spence JS,Buhner DM,Hart J Jr,Cullum CM,Biggs MM,Hester AL,Odegard TN,Carmack PS,Briggs RW,Haley RW

更新日期：2011-10-01 00:00:00

abstract：:Findings from computed tomography (CT) and ultrasound (US) examinations of 74 patients who were clinically thought to have pelvic masses and of 110 patients who had possible recurrence of pelvic tumors were analyzed. There was no significant difference in the ability of the two modalities to identify masses or to pred...

journal_title：Radiology

authors： Sanders RC,McNeil BJ,Finberg HJ,Hessel SJ,Siegelman SS,Adams DF,Alderson PO,Abrams HL

更新日期：1983-02-01 00:00:00

abstract：:Ten patients with presacral tumors proved by histologic and computed-tomographic investigations underwent ultrasound scanning. The sound beam was directed through the ischial foramen along longitudinal, transverse, and oblique planes. Nine of 10 tumors localized in the sacral fossa were identified sonographically. In ...

journal_title：Radiology

authors： Heckemann R,Wernecke K,Hezel J,Magnus L

更新日期：1983-05-01 00:00:00

abstract：PURPOSE:To investigate the mechanism of enhancement of hepatocellular carcinoma (HCC) on gadoxetic acid-enhanced hepatobiliary phase magnetic resonance (MR) images and to characterize HCC thus enhanced. MATERIALS AND METHODS:This retrospective study was approved by the institutional review board, and patient informed ...

journal_title：Radiology

authors： Tsuboyama T,Onishi H,Kim T,Akita H,Hori M,Tatsumi M,Nakamoto A,Nagano H,Matsuura N,Wakasa K,Tomoda K

更新日期：2010-06-01 00:00:00

abstract：:The wide variation in absorber thickness characteristic of the posteroanterior projection of the chest routinely results in film underexposure and attendant suboptimal contrast in the mediastinal, retrocardiac, and diaphragmatic regions. We propose a special scanning system to deliver a more uniform film exposure over...

journal_title：Radiology

authors： Plewes DB,Wandtke JC

更新日期：1982-03-01 00:00:00

abstract：:A review of the records of 23 patients with squamous cell carcinoma of the oral tongue and floor of mouth treated with irradiation after excisional biopsy has shown that: (a) Radiotherapy, primarily using interstitial radium implants, results in excellent local control of the primary area (100%) with preservation of f...

journal_title：Radiology

authors： Ange DW,Lindberg RD,Guillamondegui OM

更新日期：1975-07-01 00:00:00

abstract：PURPOSE:To explore the lower limits for radiofrequency (RF) power-induced specific absorption rate (SAR) achievable at 1.5 T for brain magnetic resonance (MR) imaging without loss of tissue signal or contrast present in high-SAR clinical imaging in order to create a potentially viable MR method at ultra-low RF power to...

journal_title：Radiology

authors： Sarkar SN,Alsop DC,Madhuranthakam AJ,Busse RF,Robson PM,Rofsky NM,Hackney DB

更新日期：2011-05-01 00:00:00

abstract：:Prototype electronic workstations incorporated in networks linking computed tomographic (CT) and magnetic resonance imaging systems are being developed. The authors compared observer efficiency and sensitivity in reading body CT studies from a two-screen workstation (1,000-line monitors and 12-bit dynamic range in ima...

journal_title：Radiology

authors： Foley WD,Jacobson DR,Taylor AJ,Goodman LR,Stewart ET,Gurney JW,Stroka D

更新日期：1990-03-01 00:00:00

abstract：:Thirty patients underwent 16-section multi-detector row computed tomographic (CT) angiography of the thorax with retrospective electrocardiographic gating. Institutional review board approval was obtained for retrospective analysis of CT scan data and records; patient informed consent was not required. Images reconstr...

journal_title：Radiology

authors： Hofmann LK,Zou KH,Costello P,Schoepf UJ

更新日期：2004-12-01 00:00:00

abstract：:A method of modified coronal computed tomography (CT) was developed for examination of epiphyseal growth plate arrest and neoplasms near the growth plate. Twenty-four patients were examined with this technique (26 examinations). In all cases, the growth plate and adjacent regions were well demonstrated. ...

journal_title：Radiology

authors： Murray K,Nixon GW

更新日期：1988-01-01 00:00:00