Sellar and juxtasellar lesion detection with MR.

abstract：PURPOSE:To compare the alpha-angle measurements in volunteers and patients with femoroacetabular impingement (FAI) and to develop potential threshold values. MATERIALS AND METHODS:This study was approved by the institutional review board; all individuals signed informed consent. Magnetic resonance (MR) images at 1.5 T...

journal_title：Radiology

authors： Sutter R,Dietrich TJ,Zingg PO,Pfirrmann CW

更新日期：2012-08-01 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：PURPOSE:To assess the prevalence and degree of lumbosacral transitional vertebrae (LSTV) in the Osteoarthritis Initiative (OAI) cohort, to assess whether LSTV correlates with low back pain (LBP) and buttock pain, and to assess the reproducibility of grading LSTV. MATERIALS & METHODS:Institutional review board approval...

journal_title：Radiology

authors： Nardo L,Alizai H,Virayavanich W,Liu F,Hernandez A,Lynch JA,Nevitt MC,McCulloch CE,Lane NE,Link TM

更新日期：2012-11-01 00:00:00

abstract：:Midline activity low in the pelvis seen on Ga-67 scans is frequently attributed to colonic excretion of radionuclide. We have seen two cases of infectious prostatitis with focal uptake of Ga-67 within the prostate gland. We describe a technique of using limited quantities of barium administered by enema and appropriat...

journal_title：Radiology

authors： Sullivan WT,Rosen PR,Weiland FL,Ritchey ML

更新日期：1984-08-01 00:00:00

abstract：PURPOSE:To compare the local-regional staging accuracy of the conventional two-dimensional (2D) T2-weighted imaging protocol and of the three-dimensional (3D) T2-weighted imaging protocol for preoperative magnetic resonance (MR) imaging in rectal cancer patients. MATERIALS AND METHODS:This retrospective study was appr...

journal_title：Radiology

authors： Kim H,Lim JS,Choi JY,Park J,Chung YE,Kim MJ,Choi E,Kim NK,Kim KW

更新日期：2010-02-01 00:00:00

abstract：:The findings on images of liposarcomas of the extremities in 48 patients (26 men and 22 women aged 20-85 years) were reviewed to correlate the histologic subtypes with radiologic appearance. Computed tomographic scans were obtained in 36 patients; magnetic resonance (MR) images, in 27 patients. The study group had 19 ...

journal_title：Radiology

authors： Jelinek JS,Kransdorf MJ,Shmookler BM,Aboulafia AJ,Malawer MM

更新日期：1993-02-01 00:00:00

abstract：:Recent advances in ultrasound and computed tomography have permitted localization of orbital lesions, and sophisticated high-energy irradiation techniques facilitate improved dose distribution without significant damage to normal tissue. Three patients treated for orbital pseudotumor are discussed. ...

journal_title：Radiology

authors： Kim RY,Roth RE

更新日期：1978-05-01 00:00:00

abstract：:The incidental radiation dose of lithium fluoride thermoluminescence dosimeters was recorded during 15 treatments of patients with auricular keloids. Two half-value layers were used, and the results were compared. In both instances, the homolateral lens and thyroid received twice the contralateral dose. The oropharynx...

journal_title：Radiology

authors： Fitzgerald RH Jr,Tuten TU,Fenn JO

更新日期：1982-08-01 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：:The purpose of this study was to construct and evaluate a phantom for measurement of magnetic resonance (MR) imaging sections with thicknesses of 0.3-0.6 mm. The phantom consisted of 304 0.1-mm-thick disks, each of which had a single notch filled with a diluted solution of gadopentetate dimeglumine. Qualitative and qu...

journal_title：Radiology

authors： Lemke AJ,Kazi I,de Bary P,Bernhardt U,Foerster PI,Foerster M,Felix R

更新日期：2006-08-01 00:00:00

abstract：:The vertebral involvement of DISH is described from an evaluation of 215 cadaveric spines and 100 patients with the disease. Radiographic features include linear new bone formation along the anterolateral aspect of the thoracic spine, a bumpy contour, subjacent radiolucency, and irregular and pointed bony excrescences...

journal_title：Radiology

authors： Resnick D,Niwayama G

更新日期：1976-06-01 00:00:00

abstract：:The chronically dislocated hip of a 15-month-old girl was studied postmortem. The cartilaginous components of the pelvis (both true and false acetabula) and proximal femur were demonstrated roentgenographically and correlated with gross anatomical observations. These findings should be useful in the interpretation of ...

journal_title：Radiology

authors： Ogden JA,Jensen PS

更新日期：1976-04-01 00:00:00

abstract：:I-123 HIPDM is a brain imaging agent thought to reflect cerebral cortical perfusion. Increased uptake of I-123 HIPDM occurred unexpectedly in two cases of intracranial tumors. ...

journal_title：Radiology

authors： McVeigh MC,Merchut MP,Karesh SM,Ghobrial MW,Dillehay GL

更新日期：1986-11-01 00:00:00

abstract：:Multisection, dual-echo magnetic resonance (MR) transaxial images of blood vessels contain both anatomic and qualitative information about flow. Even so, the images are produced as a series of two-dimensional tomographic sections from which full visualization of connected structures is difficult. A computer algorithm ...

journal_title：Radiology

authors： Hale JD,Valk PE,Watts JC,Kaufman L,Crooks LE,Higgins CB,Deconinck F

更新日期：1985-12-01 00:00:00

abstract：:Seventeen bilateral upper extremity lymphangiograms were obtained in patients with lymphoma referred for radiation therapy. The projection of the opacified axillary nodes is analyzed when using the mantle technique in various positions. The position of the lymph nodes varies considerably in the supine and prone positi...

journal_title：Radiology

authors： Weisenburger TH,Juillard GJ

更新日期：1977-01-01 00:00:00

abstract：PURPOSE:To evaluate the variability of tumor unidimensional, bidimensional, and volumetric measurements on same-day repeat computed tomographic (CT) scans in patients with non-small cell lung cancer. MATERIALS AND METHODS:This HIPAA-compliant study was approved by the institutional review board, with informed patient ...

journal_title：Radiology

authors： Zhao B,James LP,Moskowitz CS,Guo P,Ginsberg MS,Lefkowitz RA,Qin Y,Riely GJ,Kris MG,Schwartz LH

更新日期：2009-07-01 00:00:00

abstract：:Fifty-one pediatric patients who were suspected of having central nervous system (CNS) tumors underwent magnetic resonance (MR) imaging using a 0.35 T Diasonics MT/S system. Pulse intervals (TR) ranged from 0.5 to 2.0 seconds with echo delays (TE) of 28 and 56 msec. The ability of MR and contrast-enhanced CT to detect...

journal_title：Radiology

authors： Kucharczyk W,Brant-Zawadzki M,Sobel D,Edwards MB,Kelly WM,Norman D,Newton TH

更新日期：1985-04-01 00:00:00

abstract：:Laser-assisted balloon angioplasty has been successfully performed in peripheral and coronary arteries; however, the ability to perform laser angioplasty alone without the need for subsequent balloon angioplasty has not been reported. In the present series, infrapopliteal and below-knee popliteal sole laser thermal an...

journal_title：Radiology

authors： Sanborn TA,Mitty HA,Train JS,Dan SJ

更新日期：1989-07-01 00:00:00

abstract：:The authors report an inflammatory fibroid polyp of the colon which simulated a tumor on the air-contrast barium-enema examination. Histological evaluation revealed the inflammatory nature of the polyp. These rare lesions can be radiographically indistinguishable from primary colon carcinoma. ...

journal_title：Radiology

authors： Ferin P,Skucas J

更新日期：1983-10-01 00:00:00

abstract：PURPOSE:To prospectively evaluate the diagnostic performance of magnetic resonance (MR) spectroscopy in patients with suspicious lesions or biopsy-proved cancers at MR imaging by using histologic findings as the reference standard. MATERIALS AND METHODS:After institutional review board approval and informed consent we...

journal_title：Radiology

authors： Bartella L,Morris EA,Dershaw DD,Liberman L,Thakur SB,Moskowitz C,Guido J,Huang W

更新日期：2006-06-01 00:00:00

abstract：PURPOSE:To prospectively compare single- and multisection computed tomographic (CT) perfusion for tumor blood flow determination in an animal model. MATERIALS AND METHODS:All animal protocols and experiments were approved by the institutional animal care and use committee before the study was initiated. R3230 mammary ...

journal_title：Radiology

authors： Hakimé A,Peddi H,Hines-Peralta AU,Wilcox CJ,Kruskal J,Lin S,de Baere T,Raptopoulos VD,Goldberg SN

更新日期：2007-06-01 00:00:00

abstract：:Twenty-one patients with prostate cancer underwent intermittent arterial infusion chemotherapy with an implanted reservoir and alteration of the intrapelvic blood flow. One internal iliac artery was embolized with steel coils so that the drugs would perfuse throughout the tumor through a single tube. Angiography perfo...

journal_title：Radiology

authors： Nakamura K,Takashima S,Nakatsuka H,Onoyama Y

更新日期：1992-12-01 00:00:00

abstract：:Purpose To determine whether altered sodium (Na(+)) and chloride (Cl(-)) homeostasis can be visualized in periodic paralyses by using 7-T sodium 23 ((23)Na) and chlorine 35 ((35)Cl) magnetic resonance (MR) imaging. Materials and Methods Institutional review board approval and informed consent of all participants were ...

journal_title：Radiology

authors： Weber MA,Nagel AM,Marschar AM,Glemser P,Jurkat-Rott K,Wolf MB,Ladd ME,Schlemmer HP,Kauczor HU,Lehmann-Horn F

更新日期：2016-09-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate interobserver variability between breast radiologists by using terminology of the fourth edition of the Breast Imaging Reporting and Data System (BI-RADS) to categorize lesions on mammograms and sonograms and to retrospectively determine the positive predictive value (PPV) of BI-RADS...

journal_title：Radiology

authors： Lazarus E,Mainiero MB,Schepps B,Koelliker SL,Livingston LS

更新日期：2006-05-01 00:00:00

abstract：:Normal pancreatic ultrasound studies of 28 patients were evaluated as to pancreatic echogenicity and correlated with the morphologic appearance of the pancreas on CT to test the hypothesis that increasing pancreatic echogenicity is related to greater fat infiltration. Statistical analysis indicates that fat is a major...

journal_title：Radiology

authors： Marks WM,Filly RA,Callen PW

更新日期：1980-11-01 00:00:00

abstract：PURPOSE:To evaluate aortoiliac aneurysms repaired with endovascular stent-grafts complicated by hemodynamically significant graft stenosis. MATERIALS AND METHODS:Fifty-four patients (52 men, two women; age range, 41-90 years; mean age, 75 years) with aneurysms of the infrarenal aorta (n = 36) or iliac artery (n = 18) ...

journal_title：Radiology

authors： Silberzweig JE,Marin ML,Hollier LH,Mitty HA,Parsons RE,Cooper JM,Ahn J

更新日期：1998-10-01 00:00:00

abstract：:Pulmonary tuberculosis has long been associated with the formation of cavities in the lung. Many reports in the literature indicate that the occurrence of air-fluid levels in tuberculosis is unusual. The authors present 18 cases of proved active cavitary tuberculosis where air-fluid levels occurred during the active p...

journal_title：Radiology

authors： Cohen JR,Amorosa JK,Smith PR

更新日期：1978-05-01 00:00:00

abstract：PURPOSE:To quantitatively evaluate and validate a two-phase helical computed tomographic (CT) protocol for evaluation of pancreatic tumors. MATERIALS AND METHODS:Twenty-seven patients with pathologically proved pancreatic adenocarcinomas prospectively underwent two-phase CT examination with helical acquisition during ...

journal_title：Radiology

authors： Lu DS,Vedantham S,Krasny RM,Kadell B,Berger WL,Reber HA

更新日期：1996-06-01 00:00:00

abstract：PURPOSE:To test a neural network in differentiation of benign from malignant solitary pulmonary nodules. MATERIALS AND METHODS:Neural networks were trained and tested on the characteristics of 318 nodules. Predictive accuracy of the network was judged for calibration and discrimination. Network results were compared w...

journal_title：Radiology

authors： Gurney JW,Swensen SJ

更新日期：1995-09-01 00:00:00

abstract：PURPOSE:To determine if percutaneously applied radio frequency (RF) combined with percutaneous ethanol instillation (PEI) can increase the extent of ablation in rat breast tumors. MATERIALS AND METHODS:R3230 mammary adenocarcinoma was implanted bilaterally in the mammary fat pads of 18 female rats. The tumor nodules m...

journal_title：Radiology

authors： Goldberg SN,Kruskal JB,Oliver BS,Clouse ME,Gazelle GS

更新日期：2000-12-01 00:00:00