Can sonographers reliably identify anatomic features associated with Down syndrome in fetuses?

abstract：:T1-weighted magnetic resonance (MR) images of the pituitary gland and sella turcica routinely demonstrate a region of high signal intensity in the neurohypophysis. High-resolution MR imaging studies of the sella turcica in 200 subjects with a normal or abnormal sella were analyzed. The hyperintensity was found in the ...

journal_title：Radiology

authors： Colombo N,Berry I,Kucharczyk J,Kucharczyk W,de Groot J,Larson T,Norman D,Newton TH

更新日期：1987-11-01 00:00:00

abstract：:In a comparison of conventional and magnetic resonance (MR) angiography of the lower extremities, MR imaging was performed with extremity and body coils and a unilateral six-coil telescopic phased-array coil. In one of seven volunteers, average signal-to-noise ratio was 140% higher with the latter (p < .01), only thre...

journal_title：Radiology

authors： Kojima KY,Szumowski J,Sheley RC,Quinn SF

更新日期：1995-09-01 00:00:00

abstract：:Of 293 patients who underwent computed tomography (CT), surgery, and pathologic examination for chronic sinusitis, 25 had a diagnosis of fungal sinusitis at pathologic examination. Of these, 22 had foci of increased attenuation at CT (in four patients the mean representative CT number [Hounsfied unit] was 122.2 HU [SD...

journal_title：Radiology

authors： Zinreich SJ,Kennedy DW,Malat J,Curtin HD,Epstein JI,Huff LC,Kumar AJ,Johns ME,Rosenbaum AE

更新日期：1988-11-01 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：:Background Intracranial atherosclerosis is an important cause of ischemic stroke and is associated with several vascular risk factors. Current imaging is mainly based on the assessment of luminal narrowing rather than abnormalities in the vessel wall. Purpose To investigate the relationship between vascular risk facto...

journal_title：Radiology

authors： Lindenholz A,van der Kolk AG,van der Schaaf IC,van der Worp HB,Harteveld AA,Dieleman N,Bots ML,Hendrikse J

更新日期：2020-04-01 00:00:00

abstract：:Indium-111 (In-111) leukocyte scintigraphy was performed in two patients with postsurgical pseudoaneurysms as part of preoperative evaluation for evidence of graft infection. Despite positive In-111 uptake by the pseudoaneurysms, surgical and pathologic examinations failed to reveal any evidence of infection. The most...

journal_title：Radiology

authors： Gilbert BR,Cerqueira MD,Vea HW,Nelp WB

更新日期：1986-03-01 00:00:00

abstract：:Clinical, radiographic, and radionuclide angiographic findings of three cases of jugular glomic tumor associated with hearing loss are discussed. In one case computed tomographic findings are discussed. It is concluded that radioisotopic techniques may be useful in diagnosis and follow-up of this tumor. ...

journal_title：Radiology

authors： Alavi A,Devenney JE,Arendale S,Zimmerman RA

更新日期：1976-12-01 00:00:00

abstract：PURPOSE:To prospectively investigate the ability of a single generator to power multiple small-diameter antennas and create large zones of ablation in an in vivo swine liver model. MATERIALS AND METHODS:Thirteen female domestic swine (mean weight, 70 kg) were used for the study as approved by the animal care and use c...

journal_title：Radiology

authors： Brace CL,Laeseke PF,Sampson LA,Frey TM,van der Weide DW,Lee FT Jr

更新日期：2007-07-01 00:00:00

abstract：:The author's experience with 72 patients with impotence, one patient with Peyronie disease (no impotence), and two healthy volunteers indicates that incompetence of the venocclusive mechanism of the corpora cavernosa is probably the most common cause of vasculogenic impotence. Manometric and angiographic studies are t...

journal_title：Radiology

authors： Bookstein JJ

更新日期：1987-07-01 00:00:00

abstract：PURPOSE:To compare negative appendectomy and perforation rates in children who underwent ultrasonography (US), computed tomography (CT), or no imaging before urgent appendectomy. MATERIALS AND METHODS:All children who underwent urgent appendectomy during a 4(1/2)-year period were identified in a surgical billing datab...

journal_title：Radiology

authors： Applegate KE,Sivit CJ,Salvator AE,Borisa VJ,Dudgeon DL,Stallion AE,Grisoni ER

更新日期：2001-07-01 00:00:00

abstract：:Eight patients with liver disease and seriously abnormal blood coagulation underwent biopsy of the liver performed through a percutaneously introduced sheath, followed by embolization of the biopsy track with steel coils. In all cases the biopsy procedure produced profuse bleeding through the sheath. However, the blee...

journal_title：Radiology

authors： Allison DJ,Adam A

更新日期：1988-10-01 00:00:00

abstract：:Adenomatous hyperplastic nodules (AHNs) in the cirrhotic liver may be precurosors of hepatocellular carcinoma. These nodules have been demonstrated more frequently because of the increased use of ultrasonography (US) in the screening of high-risk patients. Treatment is a problem because surgical resection of a precanc...

journal_title：Radiology

authors： Livraghi T,Sangalli G,Vettori C

更新日期：1989-01-01 00:00:00

abstract：PURPOSE:To determine the appropriate radiologic criteria of metastatic retropharyngeal lymph nodes (RLNs) in patients with nasopharyngeal carcinoma (NPC). MATERIALS AND METHODS:After institutional review board approval and informed consent, 303 consecutive NPC patients treated with definitive radiation therapy were ex...

journal_title：Radiology

authors： Zhang GY,Liu LZ,Wei WH,Deng YM,Li YZ,Liu XW

更新日期：2010-05-01 00:00:00

abstract：:An overview of current air-contrast stomach examination techniques is offered: (a) Hampton's technique which does not use distension; (b) the Japanese method which utilizes the relaxant drug Buscopan, good distension, and much patient rotation; (c) a third method in which no drugs are used but more distension is obtai...

journal_title：Radiology

authors： Miller RE

更新日期：1975-12-01 00:00:00

abstract：:A case of tuberculosis mimicking carcinoma in the distal colon is reported. The difficulty in diagnosing a solitary tuberculous colonic lesion, a review of the literature, and a differential diagnosis are presented. ...

journal_title：Radiology

authors： McDonald JB,Middleton PJ

更新日期：1976-02-01 00:00:00

abstract：PURPOSE:To differentiate prostate cancers of different histopathologic grades with dynamic gadolinium-enhanced magnetic resonance (MR) imaging. Results with a conventional small-molecular contrast medium (CM) were compared to those with a prototypic macromolecular CM. MATERIALS AND METHODS:High- and low-grade tumors, ...

journal_title：Radiology

authors： Gossmann A,Okuhata Y,Shames DM,Helbich TH,Roberts TP,Wendland MF,Huber S,Brasch RC

更新日期：1999-10-01 00:00:00

abstract：:A simple device is described that can reduce personnel exposure from scatter radiation by up to 75%. The device consists of an oblong piece of shielding (0.75-mm lead equivalent) that is taped to the side of the patient during percutaneous renal stone removal and other interventional procedures. Contrary to other shie...

journal_title：Radiology

authors： Young AT,Morin RL,Hunter DW,Nelson KL,Cardella JF,Castaneda-Zuniga WR,Amplatz K

更新日期：1986-06-01 00:00:00

abstract：:Radiologic education, research, and the practice of radiology will be of the highest quality in the future if academic departments stress organ-system subspecialization while continuing to integrate and interface with technique-based specialists. Planning should begin now to effect an orderly progression to an organ-s...

journal_title：Radiology

authors： Hartman GW,McClennan BL,Pfister RC

更新日期：1986-02-01 00:00:00

abstract：:While invasive imaging techniques, especially selective conventional coronary angiography, will remain vital to planning and guiding catheter-based and surgical treatment of significantly stenotic coronary lesions, the comprehensive and serial assessment of asymptomatic or minimally symptomatic stages of coronary arte...

journal_title：Radiology

authors： Schoenhagen P,Halliburton SS,Stillman AE,Kuzmiak SA,Nissen SE,Tuzcu EM,White RD

更新日期：2004-07-01 00:00:00

abstract：PURPOSE:To determine if fluorine 18 fluorodeoxyglucose (FDG) positron emission tomographic (PET)/computed tomographic (CT) imaging can depict a treatment effect from intravenous antibiotics for pulmonary exacerbation in cystic fibrosis (CF). MATERIALS AND METHODS:The study was approved by the institutional review boar...

journal_title：Radiology

authors： Amin R,Charron M,Grinblat L,Shammas A,Grasemann H,Graniel K,Ciet P,Tiddens H,Ratjen F

更新日期：2012-09-01 00:00:00

abstract：:Purpose To measure the levels of gadolinium present in the rat brain 1 and 20 weeks after dosing with contrast agent and to determine if there are any histopathologic sequelae. Materials and Methods The study was approved by the GE Global Research Center Institutional Animal Care and Use Committee. Absolute gadolinium...

journal_title：Radiology

authors： Smith AP,Marino M,Roberts J,Crowder JM,Castle J,Lowery L,Morton C,Hibberd MG,Evans PM

更新日期：2017-03-01 00:00:00

abstract：:Bladder tumors initially may be diagnosed by excretory urography in patients undergoing the examination because of specific symptoms or unrelated complaints. Among seven strategies tested by six experienced readers, the combination of early, full-bladder, and postvoiding anteroposterior radiographs was most successful...

journal_title：Radiology

authors： Hillman BJ,Silvert M,Cook G,Stanisic T,Bjelland J,Claypool HR,Haber K,Mellins HZ

更新日期：1981-02-01 00:00:00

abstract：:To assess the potential of in vivo magnetic resonance (MR) spectroscopy for breast cancer, hydrogen-1 and phosphorus-31 MR spectra of five malignant human breast tumors were compared with those of unaffected breast tissue. The water-to-fat ratio was high in the tumors (average, 2.2) but low in the unaffected tissue (a...

journal_title：Radiology

authors： Sijens PE,Wijrdeman HK,Moerland MA,Bakker CJ,Vermeulen JW,Luyten PR

更新日期：1988-12-01 00:00:00

abstract：:Deshpande et al (1) have shown that P-selectin-targeted microbubbles (MBs) can be used to monitor the expression of this molecule as a marker of inflammation in a murine model of inflammatory bowel disease (IBD). If these results can be reproduced in future clinical trials, contrast material–enhanced ultrasound (US) o...

journal_title：Radiology

authors： Forsberg F

更新日期：2012-01-01 00:00:00

abstract：PURPOSE:To prospectively compare traditional filtered back projection (FBP) and iterative image reconstruction for the evaluation of heavily calcified arteries with coronary computed tomography (CT) angiography. MATERIALS AND METHODS:The study had institutional review board approval and was HIPAA compliant. Written in...

journal_title：Radiology

authors： Renker M,Nance JW Jr,Schoepf UJ,O'Brien TX,Zwerner PL,Meyer M,Kerl JM,Bauer RW,Fink C,Vogl TJ,Henzler T

更新日期：2011-08-01 00:00:00

abstract：:On computed tomographic scans of the upper abdomen the interface sign can help distinguish pleural and intra-abdominal fluid readily and accurately. A hazy interface between the fluid and liver or spleen is characteristic of pleural fluid. A sharp interface is characteristic of ascites. The interface sign has proved t...

journal_title：Radiology

authors： Teplick JG,Teplick SK,Goodman L,Haskin ME

更新日期：1982-07-01 00:00:00

abstract：PURPOSE:To retrospectively compare the kinetic and morphologic characteristics of pure ductal carcinoma in situ (DCIS) lesions depicted on dynamic contrast material-enhanced magnetic resonance (MR) images with the nuclear grade and conventional mammographic appearance of these lesions. MATERIALS AND METHODS:This HIPAA...

journal_title：Radiology

authors： Jansen SA,Newstead GM,Abe H,Shimauchi A,Schmidt RA,Karczmar GS

更新日期：2007-12-01 00:00:00

abstract：:Fifteen patients with suspected or known aortic dissection were imaged with magnetic resonance (MR). Thirteen of these patients were eventually shown to have dissection. In most instances the diagnosis was established by aortography and/or computed tomography (CT) prior to the MR study. Surgical proof (6/13) and/or ao...

journal_title：Radiology

authors： Amparo EG,Higgins CB,Hricak H,Sollitto R

更新日期：1985-05-01 00:00:00

abstract：PURPOSE:To describe a program for controlling intravenous use of low-osmolar contrast agents (LOCAs). MATERIALS AND METHODS:The department of radiology at the authors' institution adopted a policy of selective use of intravenously administered LOCAs. Clinical indications for LOCA use were specified after consultation ...

journal_title：Radiology

authors： Levin DC,Gardiner GA Jr,Karasick S,Shaber GS,Wechsler RJ,McArdle GH,Lockard CD,Harford RJ

更新日期：1993-12-01 00:00:00

abstract：PURPOSE:To estimate the radiation dose from whole-body fluorine 18 ((18)F)-fluorodeoxyglucose (FDG) positron emission tomographic (PET)/computed tomographic (CT) studies and to evaluate the induced cancer risk to U.S. and Hong Kong populations. MATERIALS AND METHODS:Fluorine 18-FDG PET/CT studies obtained by using a 6...

journal_title：Radiology

authors： Huang B,Law MW,Khong PL

更新日期：2009-04-01 00:00:00