Quantitative Evaluation of Atlas-based Attenuation Correction for Brain PET in an Integrated Time-of-Flight PET/MR Imaging System.

abstract：PURPOSE:To design a chest radiography unit that eliminates scatter. MATERIALS AND METHODS:A scanning slit radiography unit that also incorporates a conventional grid was designed. The scanning slit geometry defined a 10-mm-wide beam at the image receptor. RESULTS:With a typical heavy-duty radiographic tube, the propo...

journal_title：Radiology

authors： Barnes GT,Wu X,Sanders PC

更新日期：1994-02-01 00:00:00

abstract：PURPOSE:To compare unenhanced helical computed tomography (CT) and endoscopic retrograde cholangiopancreatography (ERCP) in the detection of common bile duct calculi. MATERIALS AND METHODS:Within 13 months, 51 patients (aged 18-94 years) with clinically suspected choledocholithiasis underwent unenhanced helical CT imm...

journal_title：Radiology

authors： Neitlich JD,Topazian M,Smith RC,Gupta A,Burrell MI,Rosenfield AT

更新日期：1997-06-01 00:00:00

abstract：:Both ultrasonography and x-ray mammography were performed on a male patient who had breast carcinoma. While the x-ray mammographic features were highly suggestive of malignancy, the sonographic findings were subtle. Because of the technical difficulties associated with x-ray mammography of the male breast, ultrasound ...

journal_title：Radiology

authors： Jackson VP,Gilmor RL

更新日期：1983-11-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate fused positron emission tomography (PET)/computed tomography (CT) in depicting the primary lesion in cancer of an unknown primary tumor, compared with PET, CT, and PET and CT side-by-side evaluation. MATERIALS AND METHODS:Institutional review board approval and informed consent were...

journal_title：Radiology

authors： Gutzeit A,Antoch G,Kühl H,Egelhof T,Fischer M,Hauth E,Goehde S,Bockisch A,Debatin J,Freudenberg L

更新日期：2005-01-01 00:00:00

abstract：PURPOSE:To evaluate the dimensions of specific white matter tracts in the brainstems (region of brain thought to be least affected) of children with holoprosencephaly by using diffusion tensor magnetic resonance (MR) imaging and to correlate these abnormalities with forebrain malformation severity and neurologic defici...

journal_title：Radiology

authors： Albayram S,Melhem ER,Mori S,Zinreich SJ,Barkovich AJ,Kinsman SL

更新日期：2002-06-01 00:00:00

abstract：PURPOSE:To prospectively determine the magnetic resonance (MR) signal intensity characteristics of structures of the ampullary region and to assess the potential use of MR imaging in evaluation of the extent of periampullary tumors in resected specimens. MATERIALS AND METHODS:Twenty-five specimens from the ampullary r...

journal_title：Radiology

authors： Sugita R,Furuta A,Ito K,Fujita N,Ichinohasama R,Takahashi S

更新日期：2004-06-01 00:00:00

abstract：PURPOSE:To review the ultrasonographic (US), computed tomographic (CT), and magnetic resonance (MR) imaging findings in 13 patients with telangiectatic focal nodular hyperplasia (FNH) and to compare imaging features with histopathologic results from resected specimens. MATERIALS AND METHODS:US, helical multiphasic CT,...

journal_title：Radiology

authors： Attal P,Vilgrain V,Brancatelli G,Paradis V,Terris B,Belghiti J,Taouli B,Menu Y

更新日期：2003-08-01 00:00:00

abstract：:Aneurysms of the thoracic aorta simulated primary esophageal disease both clinically and radiographically in 5 patients. Four had an aortoesophageal fistula at the time of presentation; endoscopic biopsy of a presumed esophageal tumor precipitated hematemesis in the fifth patient. In retrospect, the fistulas were demo...

journal_title：Radiology

authors： Baron RL,Koehler RE,Gutierrez FR,Forrest JV,Weyman PJ

更新日期：1981-12-01 00:00:00

abstract：:In 2 adults who had received thorotrast intravenously at ages 2 and 3 years, respectively, radiopaque outlines of their infantile vertebrae were seen in the adult vertebrae. Similar "ghosts" of the hemipelves were present in the pelvis of 1 patient. Autopsy findings and autoradiographs in 1 patient strongly suggest th...

journal_title：Radiology

authors： Teplick JG,Head GL,Kricun ME,Haskin ME

更新日期：1978-12-01 00:00:00

abstract：:Purpose To retrospectively evaluate the clinical outcomes of radiofrequency ablation (RFA) for early hypovascular hepatocellular carcinomas (HCCs) and to compare them with those of typical hypervascular HCCs. Materials and Methods This retrospective multicenter study received institutional review board approval, with ...

journal_title：Radiology

authors： Lee DH,Lee JM,Kang TW,Rhim H,Kim SY,Shin YM,Seo JW,Choi MH,Lee KB

更新日期：2018-01-01 00:00:00

abstract：PURPOSE:To retrospectively compare the sensitivity of a computer-aided detection (CAD) system for depicting breast cancer in three digital mammographic views. MATERIALS AND METHODS:This study was conducted with institutional review board approval; informed consent was waived. A commercially available CAD system was ap...

journal_title：Radiology

authors： Kim SJ,Moon WK,Cho N,Cha JH,Kim SM,Im JG

更新日期：2006-12-01 00:00:00

abstract：:We report success with CT guided percutaneous catheter drainage of deep neck abscesses. The cost efficacy and decreased morbidity of percutaneous catheter drainage has been proved in abdominal and retroperitoneal abscess management, and CT for diagnosis of deep neck infections is well established. The logical applicat...

journal_title：Radiology

authors： Cole DR,Bankoff M,Carter BL

更新日期：1984-07-01 00:00:00

abstract：:Computer-controlled graphic displays are a necessity in many nuclear medicine studies. The authors propose using a set-up consisting of three modules: (a) a display system based on television technology; (b) an instrument interface employing list mode and having a low information loss rate; and (c) flexible modular so...

journal_title：Radiology

authors： Noz ME,Schimpf JH,Maguire GQ Jr

更新日期：1977-09-01 00:00:00

abstract：:Ten of 152 (7%) consecutive breast cancer patients who underwent excisional biopsy and radiation therapy developed suspect microcalcifications at the biopsy site. All ten patients underwent reexcision. Seventeen other patients developed scattered, coarse, benign macrocalcifications that have remained stable as determi...

journal_title：Radiology

authors： Rebner M,Pennes DR,Adler DD,Helvie MA,Lichter AS

更新日期：1989-03-01 00:00:00

abstract：PURPOSE:The authors reviewed serial computed tomographic (CT) scans obtained in 19 patients with diffuse panbronchiolitis (DPB) to evaluate changes in disease pattern over time. MATERIALS AND METHODS:Nineteen patients with DPB were entered into the study. After initial CT examination, 12 patients were randomly assigne...

journal_title：Radiology

authors： Akira M,Higashihara T,Sakatani M,Hara H

更新日期：1993-11-01 00:00:00

abstract：PURPOSE:To assess the frequency of splenic vein thrombosis (SVT) after splenectomy and its consequences on patient treatment. MATERIALS AND METHODS:A group of 183 consecutive patients who underwent splenectomy were evaluated. Of these patients, 119 underwent postoperative ultrasound (US) or computed tomography. RESUL...

journal_title：Radiology

authors： Petit P,Bret PM,Atri M,Hreno A,Casola G,Gianfelice D

更新日期：1994-01-01 00:00:00

abstract：:Transrectal sonography of the normal prostate demonstrates a gland that has low-level homogeneous echoes. Benign and malignant prostatic disease causes disruption of this normal texture. A prospective study was performed to determine the ability of ultrasound to detect focal defects accurately. The specific histologic...

journal_title：Radiology

authors： Rifkin MD,Kurtz AB,Choi HY,Goldberg BB

更新日期：1983-10-01 00:00:00

abstract：PURPOSE:To evaluate the diagnostic performance of coronary computed tomographic (CT) angiography for the diagnosis of mitral valve prolapse (MVP). MATERIALS AND METHODS:The retrospective case-controlled multicenter study protocol was approved by the institutional review boards. The U.S. part of the study was HIPAA com...

journal_title：Radiology

authors： Feuchtner GM,Alkadhi H,Karlo C,Sarwar A,Meier A,Dichtl W,Leschka S,Blankstein R,Gruenenfelder J,Stolzmann P,Cury RC

更新日期：2010-02-01 00:00:00

abstract：:In ten rabbit ears the central auricular artery was percutaneously catheterized and subjected to doses of laser energy transmitted through a flexible optical fiber within the artery. Arterial occlusion was not produced in the initial three ears using energy levels less than 600 mW. Higher levels of laser energy, in th...

journal_title：Radiology

authors： O'Reilly GV,Colucci VM,Astorian DG,Schoene WC,Clarke RH,Hammerschlag SB

更新日期：1982-03-01 00:00:00

abstract：:Positron emission tomography (PET) with fluorine-18 fluoro-2-deoxy-D-glucose (FDG) was performed in 19 patients referred for clinical evaluation of soft-tissue masses. These patients had 20 different lesions and had been evaluated previously with computed tomography (CT) and/or magnetic resonance (MR) imaging. The dia...

journal_title：Radiology

authors： Griffeth LK,Dehdashti F,McGuire AH,McGuire DJ,Perry DJ,Moerlein SM,Siegel BA

更新日期：1992-01-01 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：:Computed tomography (CT) resulted in a diagnostic accuracy of 89.2% and 96.1% for medial and lateral meniscal lesions, respectively, in 109 patients who underwent surgery after a direct CT study of the knee joint for a clinically suspected meniscal lesion. The meniscal lesions were the only pathologic condition found ...

journal_title：Radiology

authors： Passariello R,Trecco F,de Paulis F,Masciocchi C,Bonanni G,Zobel BB

更新日期：1985-10-01 00:00:00

abstract：:Involvement of the terminal ileum in cases of cecal carcinoma usually results from direct extension through the cecal wall and ileocecal valve. Extensive lymphatic metastasis from cecal carcinoma can result in deranged lymphatic flow and apparently cause metastatic involvement of the ileum and its mesentery in the abs...

journal_title：Radiology

authors： Moffat RE,Gourley WK

更新日期：1980-04-01 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：:History A 43-year-old right-handed man presented with a history of progressive mild left-sided weakness and slowness of movements. Symptoms began 4 years earlier, and the patient noticed a progressive decline in his daily routine due to gait difficulties in the past year. There was no history of head trauma, surgery, ...

journal_title：Radiology

authors： Vale TC,de Lima Pinto FC,Pedroso JL,Alves Dos Reis M,Batista IR,Affonseca Bressan R,Magalhães Rivero RL,Mendonça RA,Barsottini OG

更新日期：2017-05-01 00:00:00

abstract：:A new technique for the determination of bone mineral density, based on the detection of both coherently and Compton scattered photons in a narrow beam geometry, is described. Initial results show that this method delivers an accuracy of less than 2% when varying quantities of materials surround the measuring site. ...

journal_title：Radiology

authors： Puumalainen P,Uimarihuhta A,Olkkonen H

更新日期：1976-09-01 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 retrospectively compare sensitivity and specificity of magnetic resonance (MR) imaging, three-dimensional (3D) MR spectroscopy, combined MR imaging and 3D MR spectroscopy, and carbon 11 (11C)-choline positron emission tomography (PET)/computed tomography (CT) for intraprostatic tumor sextant localization, wi...

journal_title：Radiology

authors： Testa C,Schiavina R,Lodi R,Salizzoni E,Corti B,Farsad M,Kurhanewicz J,Manferrari F,Brunocilla E,Tonon C,Monetti N,Castellucci P,Fanti S,Coe M,Grigioni WF,Martorana G,Canini R,Barbiroli B

更新日期：2007-09-01 00:00:00

abstract：:In 3,600 patients evaluated with technetium-99m sulfur colloid for metastatic liver disease, 40 had equivocal scans due to a solitary defect in the interior margin of the right lobe. In these patients, the authors differentiated the gallbladder fossa from a metastatic focus using one of two new hepatobiliary agents: t...

journal_title：Radiology

authors： Rao BK,Pastakia B,Lieberman LM

更新日期：1980-08-01 00:00:00

abstract：:Twenty-six patients with an eqivocal portal defect on conventional nuclear images were evaluated with a multiplane tomographic nuclear scanner and gray scale ultrasound. In most cases the correct determination (normal or abnormal) for an area of decreased uptake could be made from the multiplane tomographic scans. Whe...

journal_title：Radiology

authors： Sample WF,Gray RK,Poe ND,Graham LS,Bennett LR

更新日期：1977-03-01 00:00:00