Normal brain iodine-125 radiation damage: effect of dose and irradiated volume in a canine model.

abstract：:To standardize femur measurement for the identification of fetuses at risk for Down syndrome, sonographers of varying professional experience and background measured the femurs of 20 Down syndrome fetuses and 709 normal control fetuses. A regression analysis performed to compare biparietal diameter to femur length on ...

journal_title：Radiology

authors： Benacerraf BR,Cnann A,Gelman R,Laboda LA,Frigoletto FD Jr

更新日期：1989-11-01 00:00:00

abstract：PURPOSE:To compare and evaluate the measures of costs for core-needle and surgical breast biopsies. MATERIALS AND METHODS:Three measures of costs were evaluated: (a) input resources, (b) actual payments, and (c) billed charges. A combination of methods were used for data collection from 10 sites enrolled in a large-sc...

journal_title：Radiology

authors： Burkhardt JH,Sunshine JH

更新日期：1999-07-01 00:00:00

abstract：:Surgical cholecystectomy is associated with a high morbidity and mortality in elderly patients with acute calculous cholecystitis and underlying cardiac or pulmonary disease. Currently there are few alternatives for treating these patients. The authors have used percutaneous cholecystolithotomy in 11 such high-risk pa...

journal_title：Radiology

authors： Picus D,Marx MV,Hicks ME,Lang EV,Edmundowicz SA

更新日期：1989-11-01 00:00:00

abstract：:Eight male heart transplant recipients underwent contrast material-enhanced electron-beam computed tomographic angiography. Coronary artery diameters measured with fixed thresholds and adaptive line density profile (LDP) methods were calculated relative to findings at quantitative coronary angiography. Variation with ...

journal_title：Radiology

authors： Funabashi N,Kobayashi Y,Perlroth M,Rubin GD

更新日期：2003-01-01 00:00:00

abstract：:An animal study was undertaken to develop a balloon dilation technique that could be used in humans to treat the common ailment of benign prostatic hypertrophy. Dogs were used as a model because of the similarities in the prostate between the two species and the ready availability of the canines. A retrograde transure...

journal_title：Radiology

authors： Castaneda F,Lund G,Larson BW,Limas E,Urness M,Reddy P,Wasserman N,Hulbert J,Hunter DW,Castaneda-Zuniga WR

更新日期：1987-06-01 00:00:00

abstract：:The purposes, implications, and history of development of the American College of Radiology-National Electrical Manufacturers Association (ACR-NEMA) Digital Imaging and Communication Standard and its contents are briefly described, and the minimum requirements of the ACR-NEMA Digital Imaging and Communication Standard...

journal_title：Radiology

authors： Wang Y,Best DE,Hoffman JG,Horii SC,Lehr JL,Lodwick GS,Morse RR,Murphy LL,Nelson OL,Perry J

更新日期：1988-02-01 00:00:00

abstract：:Two patients with a total of 4 intracerebral hemorrhages were examined by serial computer tomography (CT) over a period of up to 6 months, revealing a progressive decrease in lesion volume and density which eventually became less than that of the surrounding brain tissue. These changes were interpreted as complete clo...

journal_title：Radiology

authors： Messina AV,Chernik NL

更新日期：1976-03-01 00:00:00

abstract：:Ultrasound examinations were performed on 25 women with augmented breasts using whole-breast water-path scanning. In these patients, ultrasound imaged carcinoma, benign lesions, and fibrous capsule formation; these were confirmed by surgery. In addition, it was noted that certain prostheses appeared to be displaced po...

journal_title：Radiology

authors： Cole-Beuglet C,Schwartz G,Kurtz AB,Patchefsky AS,Goldberg BB

更新日期：1983-03-01 00:00:00

abstract：:The endothelium is not a passive blood-compatible lining for the containment of blood cells and plasma, but rather it is a metabolically active tissue that subserves a wide range of functions relating to vascular homeostasis. This article reviews the current understanding of endothelial cell biology in terms of the mo...

journal_title：Radiology

authors： Pearson JD

更新日期：1991-04-01 00:00:00

abstract：:Magnetic resonance (MR) images of the hips and knees of three healthy volunteers were reviewed and compared with images obtained from the hips of three patients with effusions. Comparison was also made with MR images obtained from two swine knees following the injections of saline in one and blood in the other. The an...

journal_title：Radiology

authors： Beltran J,Noto AM,Herman LJ,Mosure JC,Burk JM,Christoforidis AJ

更新日期：1986-01-01 00:00:00

abstract：:Fifty patients with chronic urinary tract schistosomiasis were studied with 99mTc-DTPA. All had a flow study, sequential analog imaging, and digital imaging for 25-35 minutes (20-sec. frames). Time-activity curves (DTPA renograms) were extracted; 12 patients had 131I-Hippuran probe renograms as well. Renal changes inc...

journal_title：Radiology

authors： Lamki LM,Lamki N

更新日期：1981-08-01 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：:Power Doppler sonography was used in eight symptomatic knees in seven patients with arthritis before and after joint aspiration and intraarticular administration of steroids. A qualitative decrease in synovial perfusion was observed in all eight knees, and symptoms improved in seven of the eight cases. These prelimina...

journal_title：Radiology

authors： Newman JS,Laing TJ,McCarthy CJ,Adler RS

更新日期：1996-02-01 00:00:00

abstract：:Digital radiographs obtained with a CT scanner were evaluated as an alternative to conventional pelvimetry. Dosimetry studies demonstrated an absorbed radiation dose of 22 mrad for each digital radiograph, approximately 3% of the dose for comparable standard radiographs. Distance measurements were accurately made on d...

journal_title：Radiology

authors： Federle MP,Cohen HA,Rosenwein MF,Brant-Zawadzki MN,Cann CE

更新日期：1982-06-01 00:00:00

abstract：:Purpose To determine if the combination of high cerebral blood flow (CBF) and O6-methylguanine DNA methyltransferase (MGMT) promoter methylation is associated with benefit from a second round of low-dose temozolomide (TMZ) (ie, rechallenge) in patients with glioblastoma at first recurrence. Materials and Methods The i...

journal_title：Radiology

authors： Kim C,Kim HS,Shim WH,Choi CG,Kim SJ,Kim JH

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:To assess the ability of helium 3 ((3)He) magnetic resonance (MR) imaging of regional alveolar partial pressure of oxygen (Pao2) to depict smoking-induced functional alterations and to compare its efficacy to that of current diagnostic techniques. MATERIALS AND METHODS:This study was approved by the local inst...

journal_title：Radiology

authors： Hamedani H,Kadlecek SJ,Ishii M,Xin Y,Emami K,Han B,Shaghaghi H,Gopstein D,Cereda M,Gefter WB,Rossman MD,Rizi RR

更新日期：2015-02-01 00:00:00

abstract：:Injection of fluid through catheters positioned selectively in arteries results in substantial increases in flow and pressure in those arteries for the duration of the injection. This produces certain artifacts which may lead to misinterpretation of the arteriograms. Apparent direction of flow in major vessels, extent...

journal_title：Radiology

authors： Levin DC

更新日期：1978-04-01 00:00:00

abstract：:This review offers insight into the possible role of vasa vasorum in the development of intracranial vascular disease. Unique structural features of intracranial vessels and nourishment from the surrounding cerebrospinal fluid environment may account for the relative lack of intracranial vasa vasorum early in life. Ho...

journal_title：Radiology

authors： Portanova A,Hakakian N,Mikulis DJ,Virmani R,Abdalla WM,Wasserman BA

更新日期：2013-06-01 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：:The effects of diagnostic levels of ultrasound on DNA of HeLa cells included: increased immunoreactivity to antinucleoside antibodies in G1 cells, strongly suggestive of unwinding of the helix or single-strand break induction, and low levels of non-semiconservative synthesis in logarithmically growing cells treated wi...

journal_title：Radiology

authors： Liebeskind D,Bases R,Elequin F,Neubort S,Leifer R,Goldberg R,Koenigsberg M

更新日期：1979-04-01 00:00:00

abstract：:Digital subtraction laryngography was used to evaluate laryngeal function in 8 patients: 4 with normal larynxes and 4 with laryngeal disease. Subtracted digital images provided a dynamic display of the extent and symmetry of vocal cord excursions and pyriform sinus inflation, and the vocal cord resting position was al...

journal_title：Radiology

authors： Brown BM,Enzmann DR,Hopp ML,Castellino RA

更新日期：1983-06-01 00:00:00

abstract：PURPOSE:To compare the stress experienced by women who had false-positive screening mammograms and had undergone immediate on-site diagnostic imaging evaluation with that experienced by those who had been recalled for subsequent imaging. MATERIALS AND METHODS:A retrospective survey was mailed to women with false-posit...

journal_title：Radiology

authors： Lindfors KK,O'Connor J,Parker RA

更新日期：2001-01-01 00:00:00

abstract：:Over a period of 60 months, percutaneous nonendoscopic gastrostomy for enteral feeding was successfully performed with the Seldinger technique in 250 of 252 consecutive patients. Local anesthetics alone (without intravenous sedatives) were used in 248 patients (98%). The 30-day mortality was 14.2% and included two pro...

journal_title：Radiology

authors： Halkier BK,Ho CS,Yee AC

更新日期：1989-05-01 00:00:00

abstract：:Clonogenic cell survival of in situ 9L brain tumors was measured in air-breathing rats and rats killed with nitrogen. Animals were irradiated with BEVALAC accelerated carbon ions in the plateau and spread-out Bragg peak regions of the specific ionization curve. The relative biological effectiveness (RBE) for carbon io...

journal_title：Radiology

authors： Wheeler KT,Deen DF,Leith JT,Norton KL

更新日期：1979-12-01 00:00:00

abstract：:Biliary calculi of a non-Western pattern were detected in 15 patients on real-time sonography performed over a 3-year period in a center serving a predominantly "Cape colored" (mixed race) population in South Africa. In two patients definite calculi were detected only in the common bile duct or gallbladder, but there ...

journal_title：Radiology

authors： Schulman A

更新日期：1987-02-01 00:00:00

abstract：:The biodistribution of radiomanganese (54Mn) was studied in mice, rats, and dogs. Disappearance of radioactivity from the blood was extremely rapid, with a half-time of approximately 0.8 minutes. This resulted in very favorable myocardium-to-blood ratios, even at early times after administration. The myocardial uptake...

journal_title：Radiology

authors： Atkins HL,Som P,Fairchild RG,Hui J,Schachner E,Goldman A,Ku T

更新日期：1979-12-01 00:00:00

abstract：:Persistent pain and decreased range of motion are disabling complications of wrist trauma. Between 1978 and 1986, in ten patients with persistent pain following trauma, arthrography depicted changes characteristic of adhesive capsulitis. Adhesive capsulitis has been described in the shoulder, hip, and ankle, but littl...

journal_title：Radiology

authors： Maloney MD,Sauser DD,Hanson EC,Wood VE,Thiel AE

更新日期：1988-04-01 00:00:00

abstract：PURPOSE:To compare the accuracies of whole-body 2-[fluorine 18]fluoro-2-deoxy-D-glucose (FDG) positron emission tomography (PET) and conventional imaging (thoracic computed tomography [CT], bone scintigraphy, and brain CT or magnetic resonance [MR] imaging) in staging bronchogenic carcinoma. MATERIALS AND METHODS:With...

journal_title：Radiology

authors： Marom EM,McAdams HP,Erasmus JJ,Goodman PC,Culhane DK,Coleman RE,Herndon JE,Patz EF Jr

更新日期：1999-09-01 00:00:00

abstract：:Afterloading techniques were developed for the in vivo assessment of the RBE of californium-252 with respect of radium-226 using a fibrosarcoma in mice. The afterloading holder positions sources so that the tumor is uniformly irradiated. Using the end points of tumor volumetric studies up to 150 days after irradiation...

journal_title：Radiology

authors： Moser FL,Lanzi LH,Mewissen DJ,Furedi EM,Rozenfeld M

更新日期：1975-10-01 00:00:00

abstract：PURPOSE:To assess the feasibility of percutaneous magnetic resonance (MR)-guided intramyocardial injection of gadodiamide by using real-time imaging and to quantify T1 values and the size of the enhanced region for different concentrations of contrast agent for 30 minutes after injection. MATERIALS AND METHODS:Animal ...

journal_title：Radiology

authors： Krombach GA,Pfeffer JG,Kinzel S,Katoh M,Günther RW,Buecker A

更新日期：2005-05-01 00:00:00