Focal and diffuse liver disease studied by quantitative microstructural sonography.

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：:In order to assess its potential uses in the staging and treatment planning of lymphoma, CT was performed in 27 newly diagnosed, previously untreated patients with Hodgkin's disease or non-Hodgkin's lymphoma; 18 staging laparotomies provided pathologic correlations. CT detected and defined disease in areas not well ev...

journal_title：Radiology

authors： Breiman RS,Castellino RA,Harell GS,Marshall WH,Glatstein E,Kaplan HS

更新日期：1978-01-01 00:00:00

abstract：:A simple technique used to catheterize boys for voiding cystourethrography, using a feeding catheter while the urethra is distended by a saline solution is described. ...

journal_title：Radiology

authors： Lorenzo RL,Bradford BF

更新日期：1980-05-01 00:00:00

abstract：:The goals of reconstructive surgery for scaphoid fracture nonunions include restoration of normal scaphoid length and shape by use of the contralateral scaphoid bone as a geometric model. A literature search revealed limited documentation of normal biometric measurements and no validation of scaphoid anatomic symmetry...

journal_title：Radiology

authors： Smith DK

更新日期：1993-04-01 00:00:00

abstract：:Background Isocitrate dehydrogenase (IDH) mutation has become one of the most important prognostic biomarkers in glioma management. Measurement of 2-hydroxyglutarate (2HG) with MR spectroscopy has shown high pooled sensitivity, although false-positive results with MR spectroscopy have been reported. Purpose To investi...

journal_title：Radiology

authors： Suh CH,Kim HS,Paik W,Choi C,Ryu KH,Kim D,Woo DC,Park JE,Jung SC,Choi CG,Kim SJ

更新日期：2019-06-01 00:00:00

abstract：:The authors developed a colostomy appliance for use during barium-enema examinations. It is 8 cm in diameter and 4 cm in height, and is made of acrylic resins. With the use of this device, 21 patients were fluoroscopically examined through the stoma; good contrast views of the lower intestinal tract were obtained in a...

journal_title：Radiology

authors： Sarashina H,Ozaki A,Fukao K,Takase Y,Todoroki T,Nagoshi K,Ohshima M,Kawakita I,Iwasaki Y

更新日期：1979-10-01 00:00:00

abstract：PURPOSE:To evaluate oxygen-enhanced T1-mapping magnetic resonance (MR) imaging as a noninvasive method for visualization and quantification of regional inflammation after segmental allergen challenge in asthmatic patients compared with control subjects. MATERIALS AND METHODS:After institutional review board approval, ...

journal_title：Radiology

authors： Renne J,Hinrichs J,Schönfeld C,Gutberlet M,Winkler C,Faulenbach C,Jakob P,Schaumann F,Krug N,Wacker F,Hohlfeld JM,Vogel-Claussen J

更新日期：2015-01-01 00:00:00

abstract：:In a study of 726 patients, xeroradiography of the thyroid using a modified oblique projection was found to be superior to conventional soft-tissue radiography in detecting calcification in thyroid tumors because of edge enhancement. This facilitated a diagnosis of carcinoma in 75% of 68 primary tumors and 55% of 33 r...

journal_title：Radiology

authors： Kasai N,Tsuya A

更新日期：1981-11-01 00:00:00

abstract：:Biliary calculi of a non-Western pattern were detected in 15 patients on real-time sonography performed over a 3-year period in a center serving a predominantly "Cape colored" (mixed race) population in South Africa. In two patients definite calculi were detected only in the common bile duct or gallbladder, but there ...

journal_title：Radiology

authors： Schulman A

更新日期：1987-02-01 00:00:00

abstract：:During a 5-year period, 11 children were identified as having traumatic atlanto-occipital dislocation injury on the basis of clinical and radiographic findings. Radiographic criteria including the distance between the tip of the dens and the basion (DB distance), the BC/OA ratio (ratio of the distance between the basi...

journal_title：Radiology

authors： Bulas DI,Fitz CR,Johnson DL

更新日期：1993-07-01 00:00:00

abstract：:An ex vivo magnetic resonance (MR) colonographic system with a bovine colon with polyps of predetermined dimensions was developed for evaluation and optimization of different combinations of imaging sequences and intraluminal contrast agents. Findings were then applied during in vivo testing in human subjects. The res...

journal_title：Radiology

authors： Martin DR,Yang M,Thomasson D,Acheson C

更新日期：2002-11-01 00:00:00

abstract：:Background Several changes have been made to the revised 2017 international consensus guidelines for management of pancreatic intraductal papillary mucinous neoplasms (IPMNs). However, the diagnostic performance is yet to be verified. Purpose To evaluate the revised guidelines for predicting malignant potential of pan...

journal_title：Radiology

authors： Lee JE,Choi SY,Min JH,Yi BH,Lee MH,Kim SS,Hwang JA,Kim JH

更新日期：2019-10-01 00:00:00

abstract：:In five patients undergoing magnetic resonance imaging of the knee after athletic injuries, the authors identified a vacuum phenomenon that simulated medial meniscal or joint compartment cartilaginous abnormality. A cadaveric knee was injected with air, and the findings were re-created. The presence of air or gas betw...

journal_title：Radiology

authors： Shogry ME,Pope TL Jr

更新日期：1991-08-01 00:00:00

abstract：:In a series of 526 consecutive, unprepared patients examined by ultrasound, the gallbladder was visualized in 507 (96%). The average wall thickness was 2 mm or less in 97% of asymptomatic subjects without cholelithiasis and 3 mm or greater in 45% of those with choletithiasis. Pathologic correlation of increased thickn...

journal_title：Radiology

authors： Finberg HJ,Birnholz JC

更新日期：1979-12-01 00:00:00

abstract：PURPOSE:To evaluate the sensitivity and specificity of biphasic computed tomography (CT) with mesenteric CT angiography in the diagnosis of acute mesenteric ischemia (AMI). MATERIALS AND METHODS:Sixty-two patients with clinically suspected AMI underwent prospective imaging with biphasic multi-detector row CT. Mesenter...

journal_title：Radiology

authors： Kirkpatrick ID,Kroeker MA,Greenberg HM

更新日期：2003-10-01 00:00:00

abstract：:The effects of magnetic resonance (MR) pulse sequences and timing parameters on tumor-liver contrast were studied in an animal model of metastatic liver cancer. Six spin-echo (SE), three inversion-recovery (IR), and four gradient-echo (GRE) sequences were evaluated at 0.6 T before and after injection of super-paramagn...

journal_title：Radiology

authors： Fretz CJ,Elizondo G,Weissleder R,Hahn PF,Stark DD,Ferrucci JT Jr

更新日期：1989-08-01 00:00:00

abstract：PURPOSE:To review the mammographic features of screening interval breast cancers and to compare the tumor size, histologic grade, and lymph node involvement with those in screening-detected and unscreened symptomatic cancers. MATERIALS AND METHODS:Screening mammography was performed in 72,773 women aged 50-64 years. N...

journal_title：Radiology

authors： Burrell HC,Sibbering DM,Wilson AR,Pinder SE,Evans AJ,Yeoman LJ,Elston CW,Ellis IO,Blamey RW,Robertson JF

更新日期：1996-06-01 00:00:00

abstract：:The effectiveness of three methods of assessing the patient body burden following 131I therapy was compared: (a) urine assay, (b) external exposure rate measurements, and (c) predictions based on a pretherapy diagnostic work-up. The urine assay method exhibited the greatest potential for error and personnel risk. The ...

journal_title：Radiology

authors： Thomas SR,Maxon HR,Fritz KM,Kereiakes JG,Connell WD

更新日期：1980-12-01 00:00:00

abstract：:To analyze the effectiveness and accuracy of the diagnostic process from screening mammography to final diagnosis at pathologic examination, the authors conducted a prospective study of 277 consecutive patients who underwent 291 mammographically directed biopsies of nonpalpable lesions. Of the 170 lesions that demonst...

journal_title：Radiology

authors： Stein MA,Karlan MS

更新日期：1991-04-01 00:00:00

abstract：:To assess the relationship of coronary artery calcification to angiographically detectable disease, the authors evaluated 100 patients less than 60 years of age who underwent clinically indicated coronary angiography and ultrafast computed tomography (CT). The ultrafast CT technique consisted of 3-mm-thick contiguous ...

journal_title：Radiology

authors： Breen JF,Sheedy PF 2nd,Schwartz RS,Stanson AW,Kaufmann RB,Moll PP,Rumberger JA

更新日期：1992-11-01 00:00:00

abstract：PURPOSE:To compare the magnetic resonance (MR) imaging findings of primary hepatocellular carcinoma (HCC) in cirrhotic versus noncirrhotic livers. MATERIALS AND METHODS:MR images in 36 patients with HCC (30 men and she women aged 42-84 years [mean age, 65 years]) were retrospectively reviewed. The number and size of h...

journal_title：Radiology

authors： Winston CB,Schwartz LH,Fong Y,Blumgart LH,Panicek DM

更新日期：1999-01-01 00:00:00

abstract：:Computed tomography can help in the evaluation of congenitally anomalous aortic arches and subclavian arteries. The authors discuss the role of computed tomography in the evaluation of such anomalies in seven patients. ...

journal_title：Radiology

authors： McLoughlin MJ,Weisbrod G,Wise DJ,Yeung HP

更新日期：1981-02-01 00:00:00

abstract：:Calcifications located in the dermis of the breast may appear indistinguishable from intramammary calcifications. The authors present a sign, called the tattoo sign, that can help radiologists identify dermal calcifications. When mammograms are compared, calcifications that maintain a fixed relationship to each other ...

journal_title：Radiology

authors： Homer MJ,D'Orsi CJ,Sitzman SB

更新日期：1994-07-01 00:00:00

abstract：:As computer networks become an integral part of the radiology practice, it is appropriate to raise concerns regarding their security. The purpose of this article is to present an overview of computer network security risks and preventive strategies as they pertain to the radiology enterprise. A number of technologies ...

journal_title：Radiology

authors： Eng J

更新日期：2001-08-01 00:00:00

abstract：:Studies of 23 pediatric patients with pachygyriclike changes (PLCs) examined with computed tomography (CT) and magnetic resonance (MR) imaging were reviewed to determine topographic patterns and correlate them with various clinical syndromes and degrees of neurologic impairment. Three types of topographic distribution...

journal_title：Radiology

authors： Titelbaum DS,Hayward JC,Zimmerman RA

更新日期：1989-12-01 00:00:00

abstract：PURPOSE:To describe a benign nodular lesion in the peripheral zone (PZ) of the prostate gland. MATERIALS AND METHODS:In 1,087 patients, the features of 722 focal lesions in the PZ or central zone of the prostate on transrectal ultrasound (TRUS) scans were retrospectively compared with histologic findings in biopsy sam...

journal_title：Radiology

authors： Oyen RH,Van de Voorde WM,Van Poppel HP,Brys PP,Ameye FE,Franssens YM,Baert AL,Baert LV

更新日期：1993-12-01 00:00:00

abstract：:The relationship of the brain angiographic mode circulation time (AVCT) to the mean transit time of the vascular indicator C15O-labeled hemoglobin (tc15o) and the regional cerebral blood flow (rCBF) as measured by the clearance of the diffusible tracer H2-15O was examined in 38 patients with selected cerebral diseases...

journal_title：Radiology

authors： Gado M,Eichling J,Grubb R,Phelps M,Raichie M,Ter-Pogossian MM

更新日期：1975-04-01 00:00:00

abstract：:A case of mixed connective tissue disease (MCTD) is presented in which mediastinal lymphadenopathy was the most prominent radiological finding detected by plain chest radiographs and computed tomography. Pulmonary arterial hypertension, which is a rare and often fatal complication of MCTD, also developed in this patie...

journal_title：Radiology

authors： Guit GL,Shaw PC,Ehrlich J,Kroon HM,Oudkerk M

更新日期：1985-02-01 00:00:00

abstract：PURPOSE:To evaluate the intrapatient reproducibility of the extent and anatomic distribution of air trapping at sequential expiratory thin-section computed tomographic (CT) examinations in heart-lung transplant recipients. MATERIALS AND METHODS:Nineteen heart-lung transplant recipients (eight with and 11 without bronc...

journal_title：Radiology

authors： Bankier AA,Van Muylem A,Scillia P,De Maertelaer V,Estenne M,Gevenois PA

更新日期：2003-12-01 00:00:00

abstract：PURPOSE:To examine the cost and efficacy of diagnostic work-up in patients with invasive cervical cancer. MATERIALS AND METHODS:In 246 patients with invasive cervical cancer, all diagnostic tests performed before treatment were recorded. Patients were divided into two groups: those who underwent magnetic resonance (MR...

journal_title：Radiology

authors： Hricak H,Powell CB,Yu KK,Washington E,Subak LL,Stern JL,Cisternas MG,Arenson RL

更新日期：1996-02-01 00:00:00