Peripheral vision, structured noise and film reader error.

abstract：PURPOSE:To evaluate the effect of a reduction in iodine dose by altering volume and/or concentration of contrast material on hepatic contrast enhancement (HCE) values during hepatic helical computed tomography (CT). MATERIALS AND METHODS:One hundred eleven patients were randomized into four contrast material protocols...

journal_title：Radiology

authors： Freeny PC,Gardner JC,vonIngersleben G,Heyano S,Nghiem HV,Winter TC

更新日期：1995-10-01 00:00:00

abstract：:The authors used color Doppler ultrasonography (US) to evaluate 33 children with suspected appendicitis and found locally increased blood flow in all of 10 patients with appendicitis or periappendiceal abscess; the studies were normal in 16 patients without appendicitis. The gray-scale sonographic results were concord...

journal_title：Radiology

authors： Quillin SP,Siegel MJ

更新日期：1992-09-01 00:00:00

abstract：PURPOSE:To retrospectively investigate whether the signal intensity (SI) of prostate cancer on T2-weighted magnetic resonance (MR) images correlates with the Gleason grade at whole-mount step-section pathologic evaluation after radical prostatectomy. MATERIALS AND METHODS:The institutional review board approved and is...

journal_title：Radiology

authors： Wang L,Mazaheri Y,Zhang J,Ishill NM,Kuroiwa K,Hricak H

更新日期：2008-01-01 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：:We describe a modification of a tracheostomy tube that allows treatment of carcinoma recurrence in the tracheal stoma using intracavitary radiation therapy. ...

journal_title：Radiology

authors： Janaki LM,Gardner JE,Medlin VL,Gates JR

更新日期：1986-04-01 00:00:00

abstract：:Systemic hyperthermia is an adjuvant method of treatment used in the management of advanced cancer; the hyperthermic state is induced by either the thermal blanket or the external blood shunt method. Strict monitoring of the cardiopulmonary status, the temperature, and the fluid balance is necessary. Chest radiographs...

journal_title：Radiology

authors： Stark P,Guthrie AM,Bull J

更新日期：1985-01-01 00:00:00

abstract：:Fifteen cases of smooth muscle tumor of the alimentary tract were collected for analysis from several institutions. The findings showed that angiography is the best method available for diagnosis and evaluation of such tumors but is unable to differentiate benign from malignant lesions unless arterial invasion is dete...

journal_title：Radiology

authors： Uflacker R,Amaral NM,Lima S,Wholey M,Pereira EC,Nobrega Filho M,Tavares T

更新日期：1981-05-01 00:00:00

abstract：:The authors describe their experience with methyl tertiary butyl ether (MTBE) in a larger series of patients than previously reported in order to acquaint physicians with both its effectiveness for dissolution of common bile duct calculi and the limitations of its use. Ten patients with 13 biliary calculi underwent pe...

journal_title：Radiology

authors： Brandon JC,Teplick SK,Haskin PH,Sammon JK,Muhr WF,Hofmann AF,Gambescia RA,Zitomer N

更新日期：1988-03-01 00:00:00

abstract：:Brain scintiphotography in three patients with the clinical characteristics of adrenal leukodystrophy demonstrated focal areas of increased uptake of the radionuclide. Histological examination of cerebral tissue corresponding to the abnormal foci on the scan revealed sudanophilic leukodystrophy. These findings suggest...

journal_title：Radiology

authors： Higgins CB,Taketa RM,Halpern SE

更新日期：1975-03-01 00:00:00

abstract：PURPOSE:To investigate the effect of injection rate of contrast medium on aortic and hepatic peak enhancement at computed tomography. MATERIALS AND METHODS:Early pharmacokinetics of contrast enhancement was analyzed theoretically and simulated with a compartment model. Contrast enhancement curves were generated from t...

journal_title：Radiology

authors： Bae KT,Heiken JP,Brink JA

更新日期：1998-02-01 00:00:00

abstract：:The theories of decision processes and signal detection provide a framework for evaluation of observer performance. Some radiological procedures involve a search for multiple similar lesions, e.g., plain radiographic examinations for gallstones or pneumoconiosis. Presuming knowledge of the conventional ROC curve for d...

journal_title：Radiology

authors： Metz CE,Starr SJ,Lusted LB

更新日期：1976-11-01 00:00:00

abstract：PURPOSE:A prospective study was performed to compare the sensitivity and specificity of magnetic resonance (MR) imaging and computed tomography (CT) both performed during arterial portography in depicting focal hepatic masses. MATERIALS AND METHODS:Eleven patients with 31 pathologically proved focal hepatic masses wer...

journal_title：Radiology

authors： Soyer P,Laissy JP,Sibert A,Blanc F,Belghiti J,Marmuse JP,Zeitoun G,Levesque M,Menu Y

更新日期：1994-03-01 00:00:00

abstract：PURPOSE:To evaluate the feasibility of magnetic resonance (MR) imaging-guided placement of an active vena cava filter (AVCF) in a swine model, the effectiveness of the system in filtering thrombi, and the detection of thrombi with MR imaging. MATERIALS AND METHODS:This study was approved by the government committee on...

journal_title：Radiology

authors： Kraemer NA,Immel E,Donker HC,Melzer A,Ocklenburg C,Guenther RW,Buecker A,Krombach GA,Spuentrup E

更新日期：2011-02-01 00:00:00

abstract：PURPOSE:To evaluate the data acquired over 2 1/2 years regarding the use of mechanical thrombolysis as the routine, preferred treatment for thrombosed access grafts in a large patient population undergoing hemodialysis. MATERIALS AND METHODS:Mechanical thrombolysis was performed in 1,176 cases. Data were collected on ...

journal_title：Radiology

authors： Beathard GA,Welch BR,Maidment HJ

更新日期：1996-09-01 00:00:00

abstract：:The purpose of this study was to develop criteria for distinguishing normal and degenerated lumbar intervertebral disks. Cryomicrotome sections from and magnetic resonance images of 31 cadavers were reviewed. The immature nucleus pulposus, found up to age 2 years; the transitional nucleus pulposus, found in teenagers;...

journal_title：Radiology

authors： Yu S,Haughton VM,Sether LA,Ho KC,Wagner M

更新日期：1989-02-01 00:00:00

abstract：:The ability to resolve the fine linear structures of interstitial lung disease is one measure of the limiting performance characteristics of an imaging system. Conventional screen-film radiography was compared with six algorithms of isodose storage phosphor digital radiography (0.2-mm x 10-bit pixel matrix) in the det...

journal_title：Radiology

authors： Schaefer CM,Greene R,Llewellyn HJ,Mrose HE,Pile-Spellman EA,Rubens JR,Lindemann SR

更新日期：1991-03-01 00:00:00

abstract：PURPOSE:To evaluate treatment of osteoid osteoma with computed tomography (CT)-guided percutaneous excision and immediate follow-up scintigraphy. MATERIALS AND METHODS:Sixteen consecutive adolescent and adult patients underwent CT-guided percutaneous excision of a nidus with 14-gauge biopsy cutting needles, with local...

journal_title：Radiology

authors： Roger B,Bellin MF,Wioland M,Grenier P

更新日期：1996-10-01 00:00:00

abstract：PURPOSE:To determine the prevalence and severity of tracheomalacia in adults with cystic fibrosis (CF) by using dynamic cine multidetector computed tomography (CT) and to correlate these findings with pulmonary function test (PFT) results and the severity of parenchymal lung disease. MATERIALS AND METHODS:In this inst...

journal_title：Radiology

authors： McDermott S,Barry SC,Judge EP,Collins S,de Jong PA,Tiddens HA,McKone EF,Gallagher CC,Dodd JD

更新日期：2009-08-01 00:00:00

abstract：:The clinical and radiologic findings in 30 patients who sustained injuries to the temporomandibular joint (TMJ) were retrospectively analyzed. Imaging consisted of variable combinations of radiography, tomography, two-compartment arthrography, computed tomography, and magnetic resonance imaging and was performed 2 day...

journal_title：Radiology

authors： Schellhas KP

更新日期：1989-10-01 00:00:00

abstract：PURPOSE:To assess prospectively the concordance of enhancement patterns of focal liver masses on contrast material-enhanced ultrasonographic (US) scans with patterns on contrast-enhanced computed tomographic (CT) scans or magnetic resonance (MR) images. MATERIALS AND METHODS:This study was approved by the institutiona...

journal_title：Radiology

authors： Burns PN,Wilson SR

更新日期：2007-01-01 00:00:00

abstract：PURPOSE:To evaluate clinical response to treatment of calcified tendinitis of the shoulder by using a modified percutaneous ultrasonography (US)-guided fine-needle technique. MATERIALS AND METHODS:Thirty shoulders of 30 consecutive patients (23 women, seven men; mean age, 47.4 years) with chronic shoulder pain (averag...

journal_title：Radiology

authors： Aina R,Cardinal E,Bureau NJ,Aubin B,Brassard P

更新日期：2001-11-01 00:00:00

abstract：PURPOSE:To determine the effect of magnetic resonance (MR) imaging findings on management of complex fetal disorders. MATERIALS AND METHODS:MR imaging of the fetus was performed in 25 consecutive pregnant patients referred because of possible complex fetal disorders suspected on the basis of ultrasonographic (US) find...

journal_title：Radiology

authors： Coakley FV,Hricak H,Filly RA,Barkovich AJ,Harrison MR

更新日期：1999-12-01 00:00:00

abstract：PURPOSE:To present data from the first prospective pilot phase trial of breast cancer participants imaged with fluorine 18 ((18)F)-2-fluoropropionyl-labeled PEGylated dimeric arginine-glycine-aspartic acid ( RGD arginine-glycine-aspartic acid ) peptide (PEG3-E[c{ RGD arginine-glycine-aspartic acid yk}]2) ( FPPRGD2 2-fl...

journal_title：Radiology

authors： Iagaru A,Mosci C,Shen B,Chin FT,Mittra E,Telli ML,Gambhir SS

更新日期：2014-11-01 00:00:00

abstract：PURPOSE:To evaluate the local tumor control and survival data for magnetic resonance (MR) imaging-guided laser-induced interstitial thermotherapy (LITT) of colorectal liver metastases. MATERIALS AND METHODS:MR imaging-guided LITT was performed in 603 patients (mean age, 61.2 years) with 1,801 liver metastases of color...

journal_title：Radiology

authors： Vogl TJ,Straub R,Eichler K,Söllner O,Mack MG

更新日期：2004-02-01 00:00:00

abstract：:Background CT deep learning reconstruction (DLR) algorithms have been developed to remove image noise. How the DLR affects image quality and radiation dose reduction has yet to be fully investigated. Purpose To investigate a DLR algorithm's dose reduction and image quality improvement for pediatric CT. Materials and M...

journal_title：Radiology

authors： Brady SL,Trout AT,Somasundaram E,Anton CG,Li Y,Dillman JR

更新日期：2021-01-01 00:00:00

abstract：:Background Previous studies have suggested that texture analysis is a promising tool in the diagnosis, characterization, and assessment of treatment response in various cancer types. Therefore, application of texture analysis may be helpful for early prediction of pathologic response in breast cancer. Purpose To inves...

journal_title：Radiology

authors： Eun NL,Kang D,Son EJ,Park JS,Youk JH,Kim JA,Gweon HM

更新日期：2020-01-01 00:00:00

abstract：:Percutaneous aspiration of the gallbladder was performed for nine hospitalized patients, most commonly to establish the diagnosis of acute cholecystitis and its complications in the critically ill patient or patient with sepsis. In five patients, aspiration alone was performed; in four, permanent percutaneous catheter...

journal_title：Radiology

authors： McGahan JP,Walter JP

更新日期：1985-06-01 00:00:00

abstract：PURPOSE:To evaluate the potential of xenon ventilation computed tomography (CT) in the quantitative and visual analysis of chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS:This study was approved by the institutional review board. After informed consent was obtained, 32 patients with COPD underwent ...

journal_title：Radiology

authors： Park EA,Goo JM,Park SJ,Lee HJ,Lee CH,Park CM,Yoo CG,Kim JH

更新日期：2010-09-01 00:00:00

abstract：:In vivo sodium magnetic resonance (MR) images of various structures--such as the heart, chest wall, kidneys, spine, liver, gallbladder, breasts, knees, hands, and feet--were obtained at 1.9 T. Improved sensitivity relative to standard spin-echo imaging was achieved with use of a modified three-dimensional acquisition ...

journal_title：Radiology

authors： Granot J

更新日期：1988-05-01 00:00:00

abstract：:The feasibility of using focused ultrasound for studying structures as small as biliary ducts and correlative radiological and ultrasonic studies of the common and larger hepatic ducts are presented. Patients whose bile ducts were visualized on intravenous or T-tube cholangiography or oral cholecystography underwent r...

journal_title：Radiology

authors： Reid MH

更新日期：1976-01-01 00:00:00