Step-wedge sensitometry.

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 determine the cellular iron uptake by using R2 and R2* mapping with multiecho readout gradient-echo and spin-echo sequences. MATERIALS AND METHODS:All experiments were approved by the institutional animal care committee. Lung carcinoma cells were lipofected with superparamagnetic iron oxides (...

journal_title：Radiology

authors： Kuhlpeter R,Dahnke H,Matuszewski L,Persigehl T,von Wallbrunn A,Allkemper T,Heindel WL,Schaeffter T,Bremer C

更新日期：2007-11-01 00:00:00

abstract：:The sonographic appearances of primary non-Hodgkin lymphoma developing in the porta hepatis in three patients soon after hepatic transplantation were reviewed. The lymphomas appeared as large hypoechoic masses encasing vital portal structures--the hepatic artery and the common bile duct--in all three cases and displac...

journal_title：Radiology

authors： Moody AR,Wilson SR,Greig PD

更新日期：1992-03-01 00:00:00

abstract：PURPOSE:To evaluate the repeatability of quantitative computed tomographic (CT) indexes of emphysema and the effect of spirometric gating of lung volume during CT in candidates for lung volume reduction surgery (LVRS). MATERIALS AND METHODS:Initial and same-day repeat routine inspiratory spiral chest CT studies were p...

journal_title：Radiology

authors： Gierada DS,Yusen RD,Pilgram TK,Crouch L,Slone RM,Bae KT,Lefrak SS,Cooper JD

更新日期：2001-08-01 00:00:00

abstract：:The idiopathic interstitial pneumonias (IIPs) are a seemingly disconnected collection of diseases usually associated with the presence of pulmonary fibrosis. Categorization of the IIPs continues to be problematic despite recent attempts to refine the diagnostic criteria and suggests that rather than separate diseases,...

journal_title：Radiology

authors： Galvin JR,Frazier AA,Franks TJ

更新日期：2010-06-01 00:00:00

abstract：:Radiologic evaluation of frontal sinus fractures is instrumental in determining the need for surgery. Computed tomography (CT) is an excellent modality for evaluation of frontal sinus trauma, particularly for anterior and posterior wall fractures. However, fractures of the nasofrontal duct are more difficult to deline...

journal_title：Radiology

authors： Harris L,Marano GD,McCorkle D

更新日期：1987-10-01 00:00:00

abstract：PURPOSE:To determine the optimal dose of intravenous contrast material for helical computed tomography (CT) of the abdomen on the basis of patient weight. MATERIALS AND METHODS:A prospective randomized study of helical CT of the abdomen was performed by using different doses of intravenous contrast material in 221 pat...

journal_title：Radiology

authors： Yamashita Y,Komohara Y,Takahashi M,Uchida M,Hayabuchi N,Shimizu T,Narabayashi I

更新日期：2000-09-01 00:00:00

abstract：:The authors evaluated the relative importance of the following scanning parameters at computed tomographic bronchoscopy in an anesthetized adult sheep's thorax: section thickness (2, 4, 8 mm), pitch (1.0, 1.5, 2.0), milliampere setting (100, 175, 250 mA), and overlap of reconstructed sections (0%, 25%, 50%, 75%). Five...

journal_title：Radiology

authors： Hopper KD,Iyriboz TA,Mahraj RP,Wise SW,Kasales CJ,TenHave TR,Wilson RP,Weaver JS

更新日期：1998-12-01 00:00:00

abstract：PURPOSE:To retrospectively determine the accuracy of endorectal magnetic resonance (MR) imaging in demonstrating seminal vesicle invasion (SVI) and to investigate the MR imaging features that can predict SVI. MATERIALS AND METHODS:The Institutional Review Board granted exempt status for this retrospective study, with ...

journal_title：Radiology

authors： Sala E,Akin O,Moskowitz CS,Eisenberg HF,Kuroiwa K,Ishill NM,Rajashanker B,Scardino PT,Hricak H

更新日期：2006-03-01 00:00:00

abstract：PURPOSE:To assess diagnostic accuracy of preoperatively performed magnetic resonance (MR) imaging for detection of tumor extent in a large patient population with histopathologically proved retinoblastoma. MATERIALS AND METHODS:Local ethics committee approval and informed consent were not required for retrospective re...

journal_title：Radiology

authors： de Graaf P,Barkhof F,Moll AC,Imhof SM,Knol DL,van der Valk P,Castelijns JA

更新日期：2005-04-01 00:00:00

abstract：PURPOSE:To evaluate the long-term clinical and hemodynamic effectiveness of aortic stent placement in cases of failure of intended infrarenal percutaneous transluminal aortic angioplasty (PTAA). MATERIALS AND METHODS:Fifty-three patients who underwent technically successful PTAA were compared with 24 patients who unde...

journal_title：Radiology

authors： Therasse E,Côté G,Oliva VL,Cusson JR,Wistaff R,Nguyen PV,Bui BT,Perreault P,Lamarre L,Soulez G

更新日期：2001-06-01 00:00:00

abstract：:Over the past 6 years, the authors evaluated 300 patients with hepatoma as part of phase 1 and 2 treatment protocol trials. Analysis of the available clinical data and radiographic studies revealed 22 patients (7.3%) with skeletal metastases demonstrated by radiography, computed tomography (CT), and/or nuclear scintig...

journal_title：Radiology

authors： Kuhlman JE,Fishman EK,Leichner PK,Magid D,Order SE,Siegelman SS

更新日期：1986-07-01 00:00:00

abstract：PURPOSE:To clarify the angiographic findings of the posterior circulation in patients with moyamoya disease. MATERIALS AND METHODS:Seventy-six patients with idiopathic moyamoya disease were studied with conventional angiography. The angiographic findings were reviewed for steno-occlusive lesions, collateral vessels, a...

journal_title：Radiology

authors： Yamada I,Himeno Y,Suzuki S,Matsushima Y

更新日期：1995-10-01 00:00:00

abstract：PURPOSE:To assess whether a combination of functional (planar imaging and single photon emission computed tomography [SPECT]) and anatomic (magnetic resonance [MR] imaging) imaging techniques can be used to noninvasively quantify tumor expression of a somatostatin receptor type 2A (SSTR2A) gene chimera in vivo. MATERI...

journal_title：Radiology

authors： Yang D,Han L,Kundra V

更新日期：2005-06-01 00:00:00

abstract：PURPOSE:To determine the clinical feasibility of a contrast material--enhanced two-dimensional (2D) magnetic resonance (MR) angiographic sequence in lower extremity arteries. MATERIALS AND METHODS:Four healthy volunteers and 12 patients underwent dynamic contrast-enhanced MR angiography; all patients also underwent co...

journal_title：Radiology

authors： Adamis MK,Li W,Wielopolski PA,Kim D,Sax EJ,Kent KC,Edelman RR

更新日期：1995-09-01 00:00:00

abstract：PURPOSE:To investigate the effect of a meal on splanchnic circulation in patients with cirrhosis of the liver. MATERIALS AND METHODS:Ten adult patients with cirrhosis and 10 adult control subjects (mean age, 54 years) underwent duplex ultrasonography. Flow volumes of the portal vein, superior mesenteric artery, spleni...

journal_title：Radiology

authors： Iwao T,Toyonaga A,Oho K,Sakai T,Tayama C,Masumoto H,Sato M,Nakahara K,Tanikawa K

更新日期：1996-12-01 00:00:00

abstract：PURPOSE:To derive a suitable method for grading masticator space invasion in nasopharyngeal carcinoma on the basis of magnetic resonance (MR) images and to determine its prognostic value in patients undergoing intensity-modulated radiation therapy. MATERIALS AND METHODS:After institutional review board approval and in...

journal_title：Radiology

authors： Zhang GY,Huang Y,Cai XY,Chen XP,Xu T,Wu J,Wei WH,Liu LZ,Huang ZL,Zhou MM,Xia ST,Wang YJ

更新日期：2014-10-01 00:00:00

abstract：:Twenty-two patients with synthetic ossicular replacements were studied with computed tomography (CT). Twelve patients had total ossicular replacement prostheses (TORPs), and ten patients had partial ossicular replacement prostheses (PORPs). Good results were achieved in 12 patients (eight with TORPs and four with PORP...

journal_title：Radiology

authors： Swartz JD,Berger AS,Zwillenberg S,Granoff DW,Popky GL

更新日期：1987-06-01 00:00:00

abstract：:Radiographs of 18 children thought to have carbonic anhydrase II deficiency were reviewed to assess intracranial calcification. These children have an autosomal recessive syndrome consisting of osteopetrosis, renal tubular acidosis, intracranial calcification, and developmental retardation. This calcification is in th...

journal_title：Radiology

authors： Cumming WA,Ohlsson A

更新日期：1985-11-01 00:00:00

abstract：PURPOSE:To evaluate and compare findings for thoracic aortic disease with three black-blood magnetic resonance (MR) pulse sequences: half-Fourier rapid acquisition with relaxation enhancement (RARE), with and without electrocardiographic (ECG) triggering, and ECG-triggered turbo spin echo (SE). MATERIALS AND METHODS:A...

journal_title：Radiology

authors： Stemerman DH,Krinsky GA,Lee VS,Johnson G,Yang BM,Rofsky NM

更新日期：1999-10-01 00:00:00

abstract：PURPOSE:To prospectively evaluate multiobserver diagnostic performance and reader agreement for colorectal polyp detection in a well-characterized cohort of patients with increased number of polyps, compared with an average-risk patient, with colonoscopy as the reference standard. MATERIALS AND METHODS:A cohort of 70 ...

journal_title：Radiology

authors： McFarland EG,Pilgram TK,Brink JA,McDermott RA,Santillan CV,Brady PW,Heiken JP,Balfe DM,Weinstock LB,Thyssen EP,Littenberg B

更新日期：2002-11-01 00:00:00

abstract：:The classical abnormalities of von Recklinghausen disease (VRD) or neurofibromatosis are well recognized. However, vertebral scalloping and gauge defects of the anterior and lateral aspects have not been reviewed, to the authors' knowledge. Case reports of 3 patients with vertebral scalloping are presented. The classi...

journal_title：Radiology

authors： Casselman ES,Mandell GA

更新日期：1979-04-01 00:00:00

abstract：PURPOSE:To assess the effectiveness of and complications associated with metallic stent placement for treatment of benign diseases of the colon. MATERIALS AND METHODS:With radiologic guidance, the authors placed metallic stents in 10 patients with benign diseases of the colon: Nine stents were placed in the rectosigmo...

journal_title：Radiology

authors： Paúl L,Pinto I,Gómez H,Fernández-Lobato R,Moyano E

更新日期：2002-06-01 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：:Thirty-five patients who were to undergo radiotherapy and 13 normal subjects were evaluated with taste questionnaires, taste acuity tests, and plasma zinc analyses. The studies were repeated on the patients in the fifth week of radiotherapy. The mean taste thresholds for NaCl (salt), sucrose (sweet), HCl (sour), and u...

journal_title：Radiology

authors： Bolze MS,Fosmire GJ,Stryker JA,Chung CK,Flipse BG

更新日期：1982-07-01 00:00:00

abstract：:The potential of a new nonionic gadolinium complex--gadodiamide injection--to (a) allow distinction between reperfused and occlusive infarction and (b) enable differentiation between reperfused reversible and irreversible myocardial injury was investigated. Three groups of rats were used: 10 with reversibly reperfused...

journal_title：Radiology

authors： Saeed M,Wendland MF,Takehara Y,Masui T,Higgins CB

更新日期：1992-03-01 00:00:00

abstract：PURPOSE:To investigate the effect of change in portal venous blood flow rates on the size and shape of ablations created by a 2.45-GHz microwave ablation device. MATERIALS AND METHODS:This study was exempt from review by the institutional animal care and use committee. An in vitro bovine liver model perfused with auto...

journal_title：Radiology

authors： Dodd GD 3rd,Kreidler SM,Lanctot AC,Glueck DH

更新日期：2015-12-01 00:00:00

abstract：PURPOSE:To determine the value of ultrasound (US) in the diagnosis of snapping iliopsoas tendon. MATERIALS AND METHODS:In three patients, dynamic US of the hip was performed as the flexed, abducted, and externally rotated hip was extended. The contralateral hip was also evaluated. Hip arthrography was performed in all...

journal_title：Radiology

authors： Cardinal E,Buckwalter KA,Capello WN,Duval N

更新日期：1996-02-01 00:00:00

abstract：:Eighty-nine patients were evaluated for coronary artery disease (CAD) with exercise radionuclide ventriculography (ERV) and contrast coronary angiography. In 70 patients with documented lesions the ERV was abnormal in 65 for a sensitivity of 93%. In patients with normal coronary arteries, the ERV was abnormal in none ...

journal_title：Radiology

authors： Brady TJ,Thrall JH,Clare JM,Rogers WL,Lo K,Pitt B

更新日期：1979-09-01 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