Dosimetry of auricular keloid irradiation.

abstract：:A fluoroscopic system was modified to achieve a 95-98% reduction in radiation exposure and dosage to patients compared with other systems that reduce fluoroscopic radiation dosage. This reduction was accomplished by custom selection of a high conversion-factor, triplemode image intensifier; custom design of a variable...

journal_title：Radiology

authors： Wesenberg RL,Amundson GM

更新日期：1984-10-01 00:00:00

abstract：:By interposing a camera with a fish-eye lens between the collimator and the illuminated field, radiotherapy ports can be recorded using the localizer light for illumination. An acrylic mold of the camera was used to maintain alignment and immobilization during the necessarily long exposures. The authors consider this ...

journal_title：Radiology

authors： Pantoja E,Frede T,Leininger V

更新日期：1977-06-01 00:00:00

abstract：:The radiologic studies of 107 patients with pulsatile tinnitus or a vascular retrotympanic mass were retrospectively reviewed. Of the 100 patients with pulsatile tinnitus, 25 had objective tinnitus. A vascular tympanic membrane was present in 37 cases (35%). Normal vascular variants were present in 23 patients (21%). ...

journal_title：Radiology

authors： Remley KB,Coit WE,Harnsberger HR,Smoker WR,Jacobs JM,McIff EB

更新日期：1990-02-01 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 the impact of nonvascular thoracic magnetic resonance (MR) imaging on the clinical decision making and diagnostic certainty of thoracic surgeons. Materials and Methods Seven thoracic surgeons at Massachusetts General Hospital, an academic quaternary referral hospital, participated in this 2-year, ...

journal_title：Radiology

authors： Ackman JB,Gaissert HA,Lanuti M,Digumarthy SR,Shepard JA,Halpern EF,Wright CD

更新日期：2016-08-01 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：:The authors investigated the contrast enhancement characteristics of the coronary artery stent lumen to assess patency and then evaluated the accuracy of computed tomographic (CT) measurement of the in-stent luminal diameter. Nineteen patients (16 men and three women; mean age, 58.7 years) with 26 stents underwent car...

journal_title：Radiology

authors： Hong C,Chrysant GS,Woodard PK,Bae KT

更新日期：2004-10-01 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 correlate the histologic structure and echotexture of peripheral nerves and verify if ultrasound (US) findings can be used to differentiate nerve from tendon. MATERIALS AND METHODS:In an in vitro study, the echotexture of normal peripheral nerves was correlated with the histologic findings. In an in vivo st...

journal_title：Radiology

authors： Silvestri E,Martinoli C,Derchi LE,Bertolotto M,Chiaramondia M,Rosenberg I

更新日期：1995-10-01 00:00:00

abstract：:Institutional review board approval and written informed consent were obtained. The purpose of this study was to prospectively validate usefulness of diffusion-tensor (DT) fiber tractography of the corticospinal tract at 3-T magnetic resonance imaging, in combination with the subcortical motor-evoked potential (MEP) t...

journal_title：Radiology

authors： Okada T,Mikuni N,Miki Y,Kikuta K,Urayama S,Hanakawa T,Fushimi Y,Yamamoto A,Kanagaki M,Fukuyama H,Hashimoto N,Togashi K

更新日期：2006-09-01 00:00:00

abstract：PURPOSE:To investigate the value of viscosity measured with ultrasonographic (US) elastography in liver fibrosis staging and to determine whether the use of a viscoelastic model to estimate liver elasticity can improve its accuracy in fibrosis staging. MATERIALS AND METHODS:The study, which was performed from February...

journal_title：Radiology

authors： Chen S,Sanchez W,Callstrom MR,Gorman B,Lewis JT,Sanderson SO,Greenleaf JF,Xie H,Shi Y,Pashley M,Shamdasani V,Lachman M,Metz S

更新日期：2013-03-01 00:00:00

abstract：:A survey of the members of the Society for Pediatric Radiology indicates that currently the majority of pediatric radiologists do not perform or interpret examinations using radionuclides, ultrasound, or computed tomography (CT). A decisive factor determining involvement with these techniques is the type of institutio...

journal_title：Radiology

authors： Leonidas JC,McCauley RG,Faerber EN

更新日期：1981-01-01 00:00:00

abstract：:Five infants with intrathoracic transdiaphragmatic duplication cysts are presented. Diagnosis was possible from the combination of several features on plain chest radiographs: (a) right-sided cystic areas lying posteriorly in the chest, (b) lower cervical or upper dorsal spinal dysraphism, and (c) unusual gas collecti...

journal_title：Radiology

authors： Hall CM

更新日期：1979-06-01 00:00:00

abstract：:The societal and individual burden caused by acute and chronic lower extremity venous disease is considerable. In the past several decades, minimally invasive endovascular interventions have been developed to reduce thrombus burden in the setting of acute deep venous thrombosis to prevent both short- and long-term mor...

journal_title：Radiology

authors： Sista AK,Vedantham S,Kaufman JA,Madoff DC

更新日期：2015-07-01 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：:Although intravascular foreign bodies are routinely removed with percutaneous extraction, surgical retrieval is performed of most nonvascular foreign bodies. The authors describe six cases in which percutaneous extraction was performed for removal of nonvascular foreign bodies. These foreign bodies included an intraab...

journal_title：Radiology

authors： Nosher JL,Siegel R

更新日期：1993-06-01 00:00:00

abstract：PURPOSE:To determine the feasibility and safety of ultrasonographically (US) guided percutaneous radiofrequency (RF) ablation in the local treatment of invasive breast carcinomas 2 cm or less in greatest diameter. MATERIALS AND METHODS:RF ablation of 21 malignant lesions was performed in 20 patients immediately before...

journal_title：Radiology

authors： Fornage BD,Sneige N,Ross MI,Mirza AN,Kuerer HM,Edeiken BS,Ames FC,Newman LA,Babiera GV,Singletary SE

更新日期：2004-04-01 00:00:00

abstract：:The Quantitative Imaging Biomarkers Alliance (QIBA) Profile for fluorodeoxyglucose (FDG) PET/CT imaging was created by QIBA to both characterize and reduce the variability of standardized uptake values (SUVs). The Profile provides two complementary claims on the precision of SUV measurements. First, tumor glycolytic a...

journal_title：Radiology

authors： Kinahan PE,Perlman ES,Sunderland JJ,Subramaniam R,Wollenweber SD,Turkington TG,Lodge MA,Boellaard R,Obuchowski NA,Wahl RL

更新日期：2020-03-01 00:00:00

abstract：:In order to examine the effects of bacteriuria on renal growth and scarring, 208 schoolgirls aged 5 to 12 years, in whom bacteriuria was detected during a screening program, were followed for 4 years. Of these, 110 were treated. Excretory urography and micturating cystography were performed at the start and end of the...

journal_title：Radiology

authors：

更新日期：1979-08-01 00:00:00

abstract：:Four patients with proved osteopetrosis (three with the infantile malignant form and one with the benign form) were examined with magnetic resonance imaging at 1.5 T. All patients were studied in the coronal and sagittal planes using both short and long repetition time/echo time sequences. The infantile malignant form...

journal_title：Radiology

authors： Rao VM,Dalinka MK,Mitchell DG,Spritzer CE,Kaplan F,August CS,Axel L,Kressel HY

更新日期：1986-10-01 00:00:00

abstract：PURPOSE:To prospectively compare contrast material-enhanced (CE) magnetic resonance (MR) imaging-derived right-to-left ventricle pulmonary transit time (PTT), left ventricular (LV) full width at half maximum (FWHM), and LV time to peak (TTP) between patients with pulmonary arterial hypertension (PAH) and healthy volunt...

journal_title：Radiology

authors： Skrok J,Shehata ML,Mathai S,Girgis RE,Zaiman A,Mudd JO,Boyce D,Lechtzin N,Lima JA,Bluemke DA,Hassoun PM,Vogel-Claussen J

更新日期：2012-06-01 00:00:00

abstract：:Sixty-two patients with 24 primary advanced, six persistent, 28 locally recurrent, and four metastatic tumors of the head and neck were treated with combined interstitial low-dose iridium-192 radiation therapy, interstitial 915-MHz microwave hyperthermia (IHT), and external-beam radiation therapy. Diagnoses were squam...

journal_title：Radiology

authors： Seegenschmiedt MH,Sauer R,Fietkau R,Iro H,Chalal JA,Brady LW

更新日期：1992-09-01 00:00:00

abstract：:The development and aging of four brain midline structures--the pituitary gland, pons, cerebellar vermis, and corpus callosum--were studied. The dimensions and area of these structures were measured by means of midsagittal magnetic resonance imaging. The study group consisted of 94 patients newborn to 15 years old and...

journal_title：Radiology

authors： Hayakawa K,Konishi Y,Matsuda T,Kuriyama M,Konishi K,Yamashita K,Okumura R,Hamanaka D

更新日期：1989-07-01 00:00:00

abstract：PURPOSE:To test the hypothesis that magnetic resonance (MR) imaging R1 (R1 = 1/T1) mapping after selectively labeling monocytes with a T1-shortening contrast agent in vivo would enable the quantitative measurement of their spatiotemporal kinetics in the setting of infarct healing. MATERIALS AND METHODS:All procedures ...

journal_title：Radiology

authors： Naresh NK,Xu Y,Klibanov AL,Vandsburger MH,Meyer CH,Leor J,Kramer CM,French BA,Epstein FH

更新日期：2012-08-01 00:00:00

abstract：PURPOSE:To investigate neuronal activations during processing of radiologic and nonradiologic images by experienced radiologists and nonradiologist subjects by using event-related functional magnetic resonance (MR) imaging. MATERIALS AND METHODS:Study was approved by local ethics committee, and informed consent was ob...

journal_title：Radiology

authors： Haller S,Radue EW

更新日期：2005-09-01 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：PURPOSE:To comprehensively characterize the dosimetric properties of a clinical digital breast tomosynthesis (DBT) system for the acquisition of mammographic and tomosynthesis images. MATERIALS AND METHODS:Compressible water-oil mixture phantoms were created and imaged by using the automatic exposure control (AEC) of ...

journal_title：Radiology

authors： Feng SS,Sechopoulos I

更新日期：2012-04-01 00:00:00

abstract：:Background Cardiac MRI late gadolinium enhancement (LGE) scar volume is an important marker for outcome prediction in patients with hypertrophic cardiomyopathy (HCM); however, its clinical application is hindered by a lack of measurement standardization. Purpose To develop and evaluate a three-dimensional (3D) convolu...

journal_title：Radiology

authors： Fahmy AS,Neisius U,Chan RH,Rowin EJ,Manning WJ,Maron MS,Nezafat R

更新日期：2020-01-01 00:00:00

abstract：PURPOSE:To evaluate the accuracy of positron emission tomography (PET) with 2-deoxy-2-[fluorine-18] fluoro-D-glucose (FDG) in the detection of osseous and soft-tissue metastases of prostate cancer. MATERIALS AND METHODS:Thirty-four patients (mean age, 71 years) with biopsy-proved prostate cancer and known or suspected...

journal_title：Radiology

authors： Shreve PD,Grossman HB,Gross MD,Wahl RL

更新日期：1996-06-01 00:00:00

abstract：PURPOSE:To identify mechanism(s) responsible for carpal tunnel syndrome (CTS). MATERIALS AND METHODS:At dynamic gadolinium-enhanced magnetic resonance (MR) imaging, the enhancement pattern of the sagittal section of the median nerve in 10 wrists of nine patients with CTS (two men and seven women, aged 43-60 years [mea...

journal_title：Radiology

authors： Sugimoto H,Miyaji N,Ohsawa T

更新日期：1994-02-01 00:00:00