Adult and neonatal human brain: diffusional anisotropy and myelination with diffusion-weighted MR imaging.

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：PURPOSE:To prospectively compare therapeutic confidence in, patient outcomes (in terms of quality of life) after, and the costs of digital subtraction angiography (DSA) with those of multi-detector row computed tomographic (CT) angiography as the initial diagnostic imaging test in patients with peripheral arterial dise...

journal_title：Radiology

authors： Kock MC,Adriaensen ME,Pattynama PM,van Sambeek MR,van Urk H,Stijnen T,Hunink MG

更新日期：2005-11-01 00:00:00

abstract：PURPOSE:To prospectively assess the potential of noninvasive diffusion-weighted magnetic resonance (MR) imaging to depict changes in microperfusion and diffusion in patients with acute unilateral ureteral obstruction. MATERIALS AND METHODS:The local ethics committee approved the study protocol. Informed consent was ob...

journal_title：Radiology

authors： Thoeny HC,Binser T,Roth B,Kessler TM,Vermathen P

更新日期：2009-09-01 00:00:00

abstract：PURPOSE:To determine the accuracy of T1-weighted fat-suppressed (FS) three-dimensional (3D) fast low-angle shot (FLASH) magnetic resonance (MR) imaging for the detection of articular cartilage abnormalities of the patellofemoral joint. MATERIALS AND METHODS:Forty-one patients with suspected internal derangement of the...

journal_title：Radiology

authors： Recht MP,Piraino DW,Paletta GA,Schils JP,Belhobek GH

更新日期：1996-01-01 00:00:00

abstract：PURPOSE:To prospectively evaluate the elastographic appearance of thyroid gland tumors and explore the potential sensitivity and specificity of ultrasonographic (US) elastography for differentiating benign and malignant tumors, with histopathologic analysis as the reference standard. MATERIALS AND METHODS:The study wa...

journal_title：Radiology

authors： Lyshchik A,Higashi T,Asato R,Tanaka S,Ito J,Mai JJ,Pellot-Barakat C,Insana MF,Brill AB,Saga T,Hiraoka M,Togashi K

更新日期：2005-10-01 00:00:00

abstract：:Positive-mode xeroradiography is an excellent method of visualizing soft-tissue structures in mammography and other procedures; however, toner deletions over a large area may preclude adequate delineation of the soft tissues near high-density structures such as bone. Use of the negative mode in the development cycle p...

journal_title：Radiology

authors： Osterman FA Jr,Zeman GH,Rao GU,Gayler B,Kirk BG,James AE Jr

更新日期：1977-09-01 00:00:00

abstract：PURPOSE:To test the technical feasibility and results of placement of metal stents into ureters obstructed by extensive tumor. MATERIALS AND METHODS:Six consecutive patients (two men and four women, aged 35-66 years and with incurable malignancies) underwent insertion of metallic endoprostheses in nine obstructed uret...

journal_title：Radiology

authors： vanSonnenberg E,D'Agostino HB,O'Laoide R,Donaldson J,Sanchez RB,Hoyt A,Pittman CC

更新日期：1994-06-01 00:00:00

abstract：PURPOSE:To determine the patency of Wallstents placed across the venous anastomosis of prosthetic bridge grafts after percutaneous graft recanalization. MATERIALS AND METHODS:Wallstents were placed across 26 lesions at the venous anastomosis of polytetrafluoroethylene (PTFE) grafts in 25 patients (11 men, 14 women; ag...

journal_title：Radiology

authors： Patel RI,Peck SH,Cooper SG,Epstein DM,Sofocleous CT,Schur I,Falk A

更新日期：1998-11-01 00:00:00

abstract：:To evaluate the ability of ultrasonography (US) to determine venous tumor extension, we studied 120 consecutive patients with renal neoplasms. The incidence of renal vein involvement in this group was 18%; caval tumor extension occurred in 11% of the patients. Real-time US clearly visualized the entire retrohepatic in...

journal_title：Radiology

authors： Schwerk WB,Schwerk WN,Rodeck G

更新日期：1985-08-01 00:00:00

abstract：:Methyl glucamine sodium diatrizoate (Renografin 76) was directly infused into the isolated arteries to the sino-atrial and atrioventricular nodes of anesthetized dogs, causing a dose-related inhibition of sino-atrial nodal automaticity and atrioventricular nodal conductivity; these effects were not attenuated by auton...

journal_title：Radiology

authors： Higgins CB,Feld GK

更新日期：1976-10-01 00:00:00

abstract：PURPOSE:To prospectively investigate steady-state blood volume measurements for early quantitative monitoring of antiangiogenic treatment with ultrasmall superparamagnetic iron oxide (USPIO)-enhanced magnetic resonance (MR) imaging. MATERIALS AND METHODS:The institutional animal care committee approved all experiments...

journal_title：Radiology

authors： Persigehl T,Bieker R,Matuszewski L,Wall A,Kessler T,Kooijman H,Meier N,Ebert W,Berdel WE,Heindel W,Mesters RM,Bremer C

更新日期：2007-08-01 00:00:00

abstract：:Twenty-one screen-film systems were examined using contrast-detail-dose methods in order to determine which were most dose-efficient for use in pediatric radiography. With a given screen, dose efficiency in the noise-limited region (contrast approximately equal to 0.05) was more or less constant (within the range of e...

journal_title：Radiology

authors： Cohen G,Wagner LK,McDaniel DL,Robinson LH

更新日期：1984-07-01 00:00:00

abstract：PURPOSE:To assess the effects of acquisition duration on computed tomographic (CT) perfusion parameter values in neuroendocrine liver metastases and normal liver tissue. MATERIALS AND METHODS:This retrospective study was institutional review board approved, with waiver of informed consent. CT perfusion studies in 16 p...

journal_title：Radiology

authors： Ng CS,Hobbs BP,Chandler AG,Anderson EF,Herron DH,Charnsangavej C,Yao J

更新日期：2013-12-01 00:00:00

abstract：:This introduction to biostatistics and measurement is the first in a series of articles designed to provide Radiology readers with a basic understanding of statistical concepts. Although most readers of the radiology literature know that application of study results to their practice requires an understanding of stati...

journal_title：Radiology

authors： Applegate KE,Crewson PE

更新日期：2002-11-01 00:00:00

abstract：:A new software program provides the real-time display of high-resolution computed tomographic reformation in the axial, coronal, sagittal, or oblique views. The advantages of this new technique over the standard multiplanar format include (a) larger image display format, (b) reconstruction of entire dataset for each o...

journal_title：Radiology

authors： Ney DR,Fishman EK,Magid D,Kuhlman JE

更新日期：1989-01-01 00:00:00

abstract：PURPOSE:To assess the diagnostic performance of various Doppler ultrasonographic (US) vascularity measures in conjunction with grayscale (GS) criteria in differentiating benign from malignant breast masses, by using histologic findings as the reference standard. MATERIALS AND METHODS:Institutional Review Board and HIP...

journal_title：Radiology

authors： LeCarpentier GL,Roubidoux MA,Fowlkes JB,Krücker JF,Hunt KA,Paramagul C,Johnson TD,Thorson NJ,Engle KD,Carson PL

更新日期：2008-11-01 00:00:00

abstract：:Postoperative irradiation reduces the local recurrence rate for malignant salivary gland tumors. Less extensive surgery followed by immediate radiotherapy is possible without decreasing local control; moreover, cosmetic appearance and physiological function are preserved. Local tumor control was achieved in 16 out of ...

journal_title：Radiology

authors： Chung CT,Sagerman RH,Ryoo MC,King GA,Yu WS,Dalal PS

更新日期：1982-10-01 00:00:00

abstract：PURPOSE:To determine the radiation dose to radiologists who perform computed tomographic (CT) fluoroscopic interventional procedures by using a quick-check method and a low-milliampere technique. MATERIALS AND METHODS:Two hundred twenty CT fluoroscopy--guided interventional procedures were performed in 189 patients. P...

journal_title：Radiology

authors： Paulson EK,Sheafor DH,Enterline DS,McAdams HP,Yoshizumi TT

更新日期：2001-07-01 00:00:00

abstract：:In 25 patients, 12 with acute-subacute and 13 with chronic extensive femoropopliteal artery occlusions (mean length, 8 cm), a prospective study was performed after application of the Kensey catheter and subsequent performance of percutaneous transluminal angioplasty (PTA). Passage through the occlusion with the Kensey...

journal_title：Radiology

authors： Triller J,Do DD,Maddern G,Mahler F

更新日期：1992-01-01 00:00:00

abstract：:Background Intimate partner violence (IPV) is a global social and public health problem, but published literature regarding the exacerbation of physical IPV during the coronavirus disease 2019 (COVID-19) pandemic is lacking. Purpose To assess the incidence, patterns, and severity of injuries in IPV victims during the ...

journal_title：Radiology

authors： Gosangi B,Park H,Thomas R,Gujrathi R,Bay CP,Raja AS,Seltzer SE,Balcom MC,McDonald ML,Orgill DP,Harris MB,Boland GW,Rexrode K,Khurana B

更新日期：2021-01-01 00:00:00

abstract：PURPOSE:To retrospectively analyze radiation dose data for six common venous access procedures. MATERIALS AND METHODS:Institutional review board approval was obtained for this HIPAA-compliant study; informed consent was not required. Data review was limited to a quality assurance database. Patient medical records were...

journal_title：Radiology

authors： Storm ES,Miller DL,Hoover LJ,Georgia JD,Bivens T

更新日期：2006-03-01 00:00:00

abstract：:A new radiographic view of the osteoarthritic knee is presented, which appears to be useful in assessing the degree of cartilage loss in the medial and/or lateral femorotibial compartments. Its usefulness in comparison with other radiographic modalities is described. ...

journal_title：Radiology

authors： Resnick D,Vint V

更新日期：1980-11-01 00:00:00

abstract：:In a study of 62 musculoskeletal neoplasms, computed tomography contributed little to establishing tissue diagnosis. Its primary value lay in the assessment of intraosseous and/or extraosseous extent of disease. CT also established the presence or absence of disease in a small number of cases with clinically questiona...

journal_title：Radiology

authors： deSantos LA,Goldstein HM,Murray JA,Wallace S

更新日期：1978-07-01 00:00:00

abstract：:Hippurate function scintiscans were obtained in prone and standing positions in a group of 76 patients with concurrent hypertension and nephroptosis. TWelve of these patients had massive, bilateral disturbance of intrarenal hippurate transport in the standing position; hippurate transport was normal in the prone posit...

journal_title：Radiology

authors： Clorius JH,Schmidlin P,Raptou E,Huber W,Georgi P

更新日期：1981-07-01 00:00:00

abstract：:The purpose of this study, which was approved by the institutional review board, was to assess the differentiation of individuals with from those without mesenteric ischemia. All subjects provided written informed consent. Six healthy volunteers and six patients with documented chronic mesenteric ischemia underwent ma...

journal_title：Radiology

authors： Lauenstein TC,Ajaj W,Narin B,Göhde SC,Kröger K,Debatin JF,Rühm SG

更新日期：2005-02-01 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：:Serial pulmonary imaging has proved to be effective in the evaluation of patients undergoing total joint arthroplasty. A clinical dilemma arises in asymptomatic patients whose postoperative pulmonary images differ from the preoperative images. The authors prospectively evaluated 403 patients with serial imaging to det...

journal_title：Radiology

authors： Foley M,Maslack MM,Rothman RH,Casey MP,Lugano EM,Parry CE,Balderston RA,Booth RE Jr

更新日期：1989-08-01 00:00:00

abstract：:Computed tomographic brain scans of the newborn exhibit relatively greater lucency of white matter compared to the mature patient. This study correlated the x-ray attenuation of white matter with gestational age in 23 neonates, both premature and term. The gray-white matter attenuation difference was calculated and pl...

journal_title：Radiology

authors： Brant-Zawadzki M,Enzmann DR

更新日期：1981-04-01 00:00:00

abstract：:The CT scan with the 160 x 160 matrix demonstrated both the normal orbital anatomy and the abnormal orbital anatomy of Graves' ophthalmopathy in great detail. In Graves' ophthalmopathy, the cardinal pathologic feature of extraocular muscle enlargement was accurately reflected on the CT scan and was a distinctive, diag...

journal_title：Radiology

authors： Enzmann D,Marshal WH Jr,Rosenthal AR,Kriss JP

更新日期：1976-03-01 00:00:00

abstract：:Computed tomography (CT) scans of 9 surgically proved cases of cerebral abscess were reviewed. The CT characteristics were studied, as were the postoperative scans. Also assessed were the contributions to the diagnosis of the clinical features, plain radiographic examinations, radionuclide imaging, and angiography. Th...

journal_title：Radiology

authors： New PF,Davis KR,Ballantine HT Jr

更新日期：1976-12-01 00:00:00