Imaging characteristics of an amorphous silicon flat-panel detector for digital chest radiography.

abstract：PURPOSE:To evaluate the usefulness of a radiographic system with monochromatic synchrotron radiation to depict small vessels and peripheral secretory ducts. MATERIALS AND METHODS:Radiography of various organs was tested in 14 anesthetized dogs and pancreatography was performed in an excised human pancreas by using the...

journal_title：Radiology

authors： Mori H,Hyodo K,Tanaka E,Uddin-Mohammed M,Yamakawa A,Shinozaki Y,Nakazawa H,Tanaka Y,Sekka T,Iwata Y,Handa S,Umetani K,Ueki H,Yokoyama T,Tanioka K,Kubota M,Hosaka H,Ishikawa N,Ando M

更新日期：1996-10-01 00:00:00

abstract：:Fifty patients with disease involving the psoas compartment were analyzed. There were 27 patients with inflammation, 17 with tumor, and 6 with hemorrhage. In all but 3 cases the disease did not originate in the psoas but spread there from neighboring structures. Disease processes followed the fascial planes in patient...

journal_title：Radiology

authors： Feldberg MA,Koehler PR,van Waes PF

更新日期：1983-08-01 00:00:00

abstract：PURPOSE:To determine whether various eosinophilic lung diseases can be differentiated by means of thin-section computed tomography (CT). MATERIALS AND METHODS:Thin-section CT scans in 111 patients with eosinophilic lung diseases-40 with chronic eosinophilic pneumonia, 16 with Churg-Strauss syndrome, 16 with allergic b...

journal_title：Radiology

authors： Johkoh T,Müller NL,Akira M,Ichikado K,Suga M,Ando M,Yoshinaga T,Kiyama T,Mihara N,Honda O,Tomiyama N,Nakamura H

更新日期：2000-09-01 00:00:00

abstract：:To visualize the flow of cerebrospinal fluid (CSF) throughout the ventricles and subarachnoid space, measure mean and maximum CSF velocities, and quantitate CSF flow through the aqueduct of Sylvius, magnetic resonance (MR) imaging was performed with a sagittal technique that is flow-sensitive in the craniocaudal direc...

journal_title：Radiology

authors： Nitz WR,Bradley WG Jr,Watanabe AS,Lee RR,Burgoyne B,O'Sullivan RM,Herbst MD

更新日期：1992-05-01 00:00:00

abstract：:It has recently been suggested that the resistive index (RI) in native kidneys of healthy children is age dependent; however, this relationship has not been completely defined or explained. In 110 kidneys in 71 healthy children aged newborn to 11 years, RIs were determined from peripheral sites (presumed to be arcuate...

journal_title：Radiology

authors： Bude RO,DiPietro MA,Platt JF,Rubin JM,Miesowicz S,Lundquist C

更新日期：1992-08-01 00:00:00

abstract：:A retrospective review of the CT and ultrasound scans from examinations of 30 patients who had hepatocellular carcinoma (hepatoma) was undertaken with special emphasis placed on evaluation of hepatic distribution of tumor, vascular invasion, and extrahepatic spread. Although both CT and ultrasound detected hepatoma in...

journal_title：Radiology

authors： LaBerge JM,Laing FC,Federle MP,Jeffrey RB Jr,Lim RC Jr

更新日期：1984-08-01 00:00:00

abstract：PURPOSE:To retrospectively determine if the use of a computer-aided detection (CAD) system can improve the performance of single reading of screening mammograms to match that of double reading in the United Kingdom. MATERIALS AND METHODS:Local research ethics committee approval was obtained; informed consent was not r...

journal_title：Radiology

authors： Gilbert FJ,Astley SM,McGee MA,Gillan MG,Boggis CR,Griffiths PM,Duffy SW

更新日期：2006-10-01 00:00:00

abstract：PURPOSE:To evaluate ultrasonographic (US) features in the differential diagnosis of giant gastric folds. MATERIALS AND METHODS:One hundred sixty-five patients with giant gastric folds at transabdominal US examination (five with Ménétrier disease, 24 with anisakiasis, 61 with acute gastric mucosal lesion [AGML], 13 wit...

journal_title：Radiology

authors： Okanobu H,Hata J,Haruma K,Hara M,Nakamura K,Tanaka S,Chayama K

更新日期：2003-03-01 00:00:00

abstract：:Real-time ultrasonography was useful in differentiating tumor from syringohydromyelia as the cause of cervical cord widening in four patients. Those with syringohydromyelia had a smooth, regular, cystic space located symmetrically in the spinal cord. Tumor appeared as an echogenic, hypoechoic, or cystic expansile lesi...

journal_title：Radiology

authors： Hutchins WW,Vogelzang RL,Neiman HL,Fuld IL,Kowal LE

更新日期：1984-04-01 00:00:00

abstract：PURPOSE:To compare changes in the concentration of choline-containing compounds (tCho) and in tumor size at follow-up after neoadjuvant chemotherapy (NAC) between patients who achieved pathologic complete response (pCR) and those who did not (non-pCR). MATERIALS AND METHODS:This study was approved by the institutional...

journal_title：Radiology

authors： Baek HM,Chen JH,Nie K,Yu HJ,Bahri S,Mehta RS,Nalcioglu O,Su MY

更新日期：2009-06-01 00:00:00

abstract：PURPOSE:To assess the value of magnetic resonance (MR) imaging in the diagnosis of pelvic inflammatory disease (PID) and to compare MR imaging with transvaginal ultrasonography (US) and laparoscopy. MATERIALS AND METHODS:Thirty consecutive patients hospitalized because they were clinically suspected of having PID unde...

journal_title：Radiology

authors： Tukeva TA,Aronen HJ,Karjalainen PT,Molander P,Paavonen T,Paavonen J

更新日期：1999-01-01 00:00:00

abstract：:Adenomatous hyperplastic nodules (AHNs) in the cirrhotic liver may be precurosors of hepatocellular carcinoma. These nodules have been demonstrated more frequently because of the increased use of ultrasonography (US) in the screening of high-risk patients. Treatment is a problem because surgical resection of a precanc...

journal_title：Radiology

authors： Livraghi T,Sangalli G,Vettori C

更新日期：1989-01-01 00:00:00

abstract：:A chart for organizing, teaching, and recording the magnetic resonance (MR) pulse sequences used for brain and cervical spine imaging is described. The chart helps document workable sequences and facilitates comparisons between different sequences. It has also been helpful in instructing residents and fellows how to a...

journal_title：Radiology

authors： Tobias JA,Sheldon JJ,Soila KP,Pomeranz SJ,Garcia L

更新日期：1985-10-01 00:00:00

abstract：:Epidemiologic data were obtained to evaluate potential risks from exposure to the static and time-varying magnetic fields used in magnetic resonance (MR) imaging. A questionnaire sent to women workers in more than 90% of clinical MR facilities in the United States addressed menstrual-reproductive experiences, work act...

journal_title：Radiology

authors： Kanal E,Gillen J,Evans JA,Savitz DA,Shellock FG

更新日期：1993-05-01 00:00:00

abstract：:Studies in dogs showed that heat-treated 99mTc-labeled red blood cells (HT/RBC) afford a highly sensitive means of detecting gastrointestinal bleeding as low as 0.12 ml/min., which could not be seen with unheated 99mTc-RBC, 99mTc-sulfur colloid, or 99mTc-DTPA. In addition, as the right upper quadrant and epigastrium r...

journal_title：Radiology

authors： Som P,Oster ZH,Atkins HL,Goldman AG,Sacker DF,Harold WH,Fairchild RG,Richards P,Brill AB

更新日期：1981-01-01 00:00:00

abstract：PURPOSE:To evaluate the use of ultrasound (US) for detection of wooden foreign bodies implanted in cadaveric specimens. MATERIALS AND METHODS:Wooden foreign bodies were randomly placed in the plantar soft tissues of three cadaver feet by using 5-mm-long incisions. Ten foreign bodies were 2.5 x 1.0 mm (length x diamete...

journal_title：Radiology

authors： Jacobson JA,Powell A,Craig JG,Bouffard JA,van Holsbeeck MT

更新日期：1998-01-01 00:00:00

abstract：PURPOSE:To evaluate the feasibility of magnetic resonance (MR) imaging-guided placement of an active vena cava filter (AVCF) in a swine model, the effectiveness of the system in filtering thrombi, and the detection of thrombi with MR imaging. MATERIALS AND METHODS:This study was approved by the government committee on...

journal_title：Radiology

authors： Kraemer NA,Immel E,Donker HC,Melzer A,Ocklenburg C,Guenther RW,Buecker A,Krombach GA,Spuentrup E

更新日期：2011-02-01 00:00:00

abstract：PURPOSE:To assess whether radiologic technologists could be successfully trained to identify abnormalities on mammograms. MATERIALS AND METHODS:Eight radiologic technologists from two different institutions took a pretest, underwent an 8-hour training course followed by a period of preceptorship, and then took a postt...

journal_title：Radiology

authors： Bassett LW,Hollatz-Brown AJ,Bastani R,Pearce JG,Hirji K,Chen L

更新日期：1995-01-01 00:00:00

abstract：:Purpose To report the impact of changing from screen-film mammography to digital mammography (DM) in a large organized national screening program. Materials and Methods A retrospective analysis of prospectively collected annual screening data from 2009-2010 to 2015-2016 for the 80 facilities of the English National He...

journal_title：Radiology

authors： Blanks RG,Wallis MG,Alison R,Kearins O,Jenkins J,Patnick J,Given-Wilson RM

更新日期：2019-03-01 00:00:00

abstract：:A prospective study had demonstrated the clinical usefulness of water-delay ultrasound as a means of routinely imaging the intracranial contents in infants younger than one year of age. Correlation between ultrasound and CT images was excellent, showing both normal and pathological anatomy. This technique is most help...

journal_title：Radiology

authors： Haber K,Wachter RD,Christenson PC,Vaucher Y,Sahn DJ,Smith JR

更新日期：1980-01-01 00:00:00

abstract：:Various whole-body, multiple-field, electron-beam therapy techniques are analyzed. Accelerator characteristics, various dosimetric techniques, and experimental setup are described. A flattening filter was constructed which produced an uncollimated electron-beam profile (4 MeV) with a uniformity of +/- 8% across a 200-...

journal_title：Radiology

authors： Tetenes PJ,Goodwin PN

更新日期：1977-01-01 00:00:00

abstract：PURPOSE:To determine if fluorine 18 fluorodeoxyglucose (FDG) positron emission tomographic (PET)/computed tomographic (CT) imaging can depict a treatment effect from intravenous antibiotics for pulmonary exacerbation in cystic fibrosis (CF). MATERIALS AND METHODS:The study was approved by the institutional review boar...

journal_title：Radiology

authors： Amin R,Charron M,Grinblat L,Shammas A,Grasemann H,Graniel K,Ciet P,Tiddens H,Ratjen F

更新日期：2012-09-01 00:00:00

abstract：:In hepatic tumors seen in children, treatment and prognosis differ from tumor to tumor and thus accurate determination of their extent and characteristics is important. Evaluation by gray scale ultrasonography, radionuclide imaging and angiography has produced definable characteristics for the various tumor types and ...

journal_title：Radiology

authors： Miller JH,Gates GF,Stanley P

更新日期：1977-08-01 00:00:00

abstract：:With modern computed tomography (CT) and magnetic resonance (MR) imaging equipment, the diagnosis of most renal masses is usually straightforward and accurate. The major question to be answered is whether the mass represents a surgical or nonsurgical lesion or, in some cases, if follow-up studies are necessary. This e...

journal_title：Radiology

authors： Israel GM,Bosniak MA

更新日期：2005-08-01 00:00:00

abstract：:Fifty-seven patients with hemorrhagic intracranial lesions were examined with magnetic resonance (MR) imaging at 1.5 T with use of both spin-echo (SE) and gradient-echo-acquisition (GEA) techniques to assess the clinical applications and limitations of GEA in evaluation of intracranial hemorrhage at high field strengt...

journal_title：Radiology

authors： Atlas SW,Mark AS,Grossman RI,Gomori JM

更新日期：1988-09-01 00:00:00

abstract：:The relationship of the brain angiographic mode circulation time (AVCT) to the mean transit time of the vascular indicator C15O-labeled hemoglobin (tc15o) and the regional cerebral blood flow (rCBF) as measured by the clearance of the diffusible tracer H2-15O was examined in 38 patients with selected cerebral diseases...

journal_title：Radiology

authors： Gado M,Eichling J,Grubb R,Phelps M,Raichie M,Ter-Pogossian MM

更新日期：1975-04-01 00:00:00

abstract：:Purpose To investigate whether nonhemodynamic resonant saturation effects can be detected in patients with focal epilepsy by using a phase-cycled stimulus-induced rotary saturation (PC-SIRS) approach with spin-lock (SL) preparation and whether they colocalize with the seizure onset zone and surface interictal epilepti...

journal_title：Radiology

authors： Kiefer C,Abela E,Schindler K,Wiest R

更新日期：2016-07-01 00:00:00

abstract：:Irradiation of the orbit is often associated with substantial dose inhomogeneity resulting from the insertion of lens blocks. We postulated that such dose inhomogeneity, which often exceeds 40%, could be halved by the use of two pairs of wedged beams, one angled in the sagittal plane and the other in the commonly empl...

journal_title：Radiology

authors： Harisiadis L,Schell MC,Working KR,Justice T,Wessels BW,Ling CC

更新日期：1985-09-01 00:00:00

abstract：PURPOSE:To determine the composition of a breast phantom that is most suitable for phototimer testing. MATERIALS AND METHODS:Kilovolt peak and milliampere second values were analyzed for phototimed exposures of phantoms containing 0%, 30%, 50%, 70%, and 100% simulated glandular material at thicknesses of 2, 4, 6, and ...

journal_title：Radiology

authors： Geise RA,Palchevsky A

更新日期：1996-02-01 00:00:00

abstract：:The influence of viewing time on the detectability of subtle and obvious lung cancers was studied. Frontal chest radiographs of 40 patients with subtle cancers, 40 patients with obvious cancers, and 40 healthy control subjects were shown to four observers for four different viewing times (0.25 second, 1 second, 4 seco...

journal_title：Radiology

authors： Oestmann JW,Greene R,Kushner DC,Bourgouin PM,Linetsky L,Llewellyn HJ

更新日期：1988-02-01 00:00:00