Detection and classification of liquid-filled masses in the breast by gray scale echography.

abstract：PURPOSE:To evaluate the measurement with ultrasonography (US) of the gallbladder ejection fraction after slow-infusion cholecystokinin stimulation in patients with biliary symptoms and in individuals without symptoms. MATERIALS AND METHODS:Gallbladder volumes were calculated in 60 healthy volunteers after a 30-minute ...

journal_title：Radiology

authors： Barr RG,Agnesi JN,Schaub CR

更新日期：1997-07-01 00:00:00

abstract：:Purpose To determine the effect of radiation dose and iterative reconstruction (IR) on noise, contrast, resolution, and observer-based detectability of subtle hypoattenuating liver lesions and to estimate the dose reduction potential of the IR algorithm in question. Materials and Methods This prospective, single-cente...

journal_title：Radiology

authors： Solomon J,Marin D,Roy Choudhury K,Patel B,Samei E

更新日期：2017-09-01 00:00:00

abstract：:The sequelae of disk degeneration are among the leading causes of functional incapacity in both sexes and are a common source of chronic disability in the working years. Disk degeneration involves structural disruption and cell-mediated changes in composition. Mechanical, traumatic, nutritional, and genetic factors al...

journal_title：Radiology

authors： Modic MT,Ross JS

更新日期：2007-10-01 00:00:00

abstract：PURPOSE:To determine whether any initial reductions in cardiovascular reserve (CVR) normalize after carotid revascularization and-because reduced CVR represents a risk factor for ischemic events-whether patients who develop periinterventional infarction have more severely reduced pretreatment CVR than those who do not....

journal_title：Radiology

authors： Haller S,Bonati LH,Rick J,Klarhöfer M,Speck O,Lyrer PA,Bilecen D,Engelter ST,Wetzel SG

更新日期：2008-10-01 00:00:00

abstract：PURPOSE:To prospectively assess the depiction rate and morphologic features of myocardial bridging (MB) of coronary arteries with 64-section computed tomographic (CT) coronary angiography in comparison to conventional coronary angiography. MATERIALS AND METHODS:Patients were simultaneously enrolled in a prospective st...

journal_title：Radiology

authors： Leschka S,Koepfli P,Husmann L,Plass A,Vachenauer R,Gaemperli O,Schepis T,Genoni M,Marincek B,Eberli FR,Kaufmann PA,Alkadhi H

更新日期：2008-03-01 00:00:00

abstract：PURPOSE:To evaluate a percutaneous pulmonary embolism (PE) thrombectomy catheter that aspirates, macerates, and removes thrombus. MATERIALS AND METHODS:Nine in vitro tests were performed by using porcine thrombi at a PE test station that provides continuous fluid output of 2 L/min at a pressure of 50 mmHg. Macroemboli...

journal_title：Radiology

authors： Kucher N,Windecker S,Banz Y,Schmitz-Rode T,Mettler D,Meier B,Hess OM

更新日期：2005-09-01 00:00:00

abstract：:Formal ethical approval was granted by the local research ethics committee; all participants gave written consent. The purpose of the study was to prospectively evaluate the feasibility of a noninvasive method of breast tumor localization in 25 participants, based on the coregistration of three-dimensional (3D) ultras...

journal_title：Radiology

authors： Cash CJ,Coles CE,Treece GM,Purushotham AD,Britton P,Sinnatamby R,Gee AH,Prager RW

更新日期：2007-11-01 00:00:00

abstract：PURPOSE:To determine the diagnostic accuracy of ultrasonographically (US) and stereotactically guided fine-needle aspiration biopsy (FNAB) in the diagnosis of nonpalpable breast lesions. MATERIALS AND METHODS:At 18 institutions, 442 women who underwent 22-25-gauge imaging-guided FNAB were enrolled. Definitive surgical...

journal_title：Radiology

authors： Pisano ED,Fajardo LL,Caudry DJ,Sneige N,Frable WJ,Berg WA,Tocino I,Schnitt SJ,Connolly JL,Gatsonis CA,McNeil BJ

更新日期：2001-06-01 00:00:00

abstract：:When fast, nondynamic scanning techniques are used in combination with adequate intravenous injection of contrast material, good-quality images of the pulmonary artery (PA) can be obtained with routine computed tomography (CT). The purpose of this study was to evaluate PA filling defects detected on these CT scans. Tw...

journal_title：Radiology

authors： Verschakelen JA,Vanwijck E,Bogaert J,Baert AL

更新日期：1993-09-01 00:00:00

abstract：:There is some confusion regarding the indications for and methodology of the use of contrast material in cranial computed tomography. Some authors recommend a nonenhanced scan in all cases, followed by an enhanced scan if indicated by the symptoms or the appearance of the unenhanced scan. Others have questioned the va...

journal_title：Radiology

authors： Latchaw RE,Gold LH,Tourje EJ

更新日期：1978-03-01 00:00:00

abstract：PURPOSE:To determine if oxidative and nitrative stress and/or apoptosis contribute to increased coagulation when combining radiofrequency (RF) ablation with liposomal doxorubicin. MATERIALS AND METHODS:Animal care committee approval was obtained. R3230 mammary adenocarcinomas in Fischer rats were treated with either R...

journal_title：Radiology

authors： Solazzo SA,Ahmed M,Schor-Bardach R,Yang W,Girnun GD,Rahmanuddin S,Levchenko T,Signoretti S,Spitz DR,Torchilin V,Goldberg SN

更新日期：2010-04-01 00:00:00

abstract：PURPOSE:To analyze the contribution of the transverse relaxation parameter (T2), macroscopic field inhomogeneities (B0), and blood volume fraction (BVf) to blood oxygen level-dependent (BOLD)-based magnetic resonance (MR) measurements of blood oxygen saturation (SO2) obtained in a brain tumor model. MATERIALS AND METH...

journal_title：Radiology

authors： Christen T,Lemasson B,Pannetier N,Farion R,Remy C,Zaharchuk G,Barbier EL

更新日期：2012-02-01 00:00:00

abstract：PURPOSE:To derive normalized data for the estimation of effective, gonadal, and peak skin doses to patients undergoing vertebroplasty or kyphoplasty and to investigate the potential for cancer induction, genetic effects, and radiation-induced skin injury after such procedures. MATERIALS AND METHODS:Dose values normali...

journal_title：Radiology

authors： Perisinakis K,Damilakis J,Theocharopoulos N,Papadokostakis G,Hadjipavlou A,Gourtsoyiannis N

更新日期：2004-09-01 00:00:00

abstract：:Percutaneous transaxillary selective coronary arteriography using preshaped catheters is useful in patients who have had aorto-iliac surgery or have clinical evidence of occlusive arterial disease of the lower extremities. For safety and ease of performance it compares favorably with the percutaneous transfemoral meth...

journal_title：Radiology

authors： Brown OL

更新日期：1975-03-01 00:00:00

abstract：:Three significantly different lateral approaches to the cervical subarachnoid space (anterior, midplane, and posterior needle positions) have been previously described for cordotomy and myelography. Experimental lateral C1-2 punctures were performed by each of these three methods in anatomic specimens, cadaver models ...

journal_title：Radiology

authors： Orrison WW,Eldevik OP,Sackett JF

更新日期：1983-02-01 00:00:00

abstract：:A new sign for the diagnosis of lipohemarthrosis on vertical beam lateral knee radiographs depends upon visualization of the joint capsule due to the presence of fat lying both within and outside of the joint. Recognition of lipohemarthrosis on routine knee radiographs may aid in the diagnosis of subtle tibial plateau...

journal_title：Radiology

authors： Sacks BA,Rosenthal DI,Hall FM

更新日期：1977-01-01 00:00:00

abstract：PURPOSE:To evaluate the magnetic resonance (MR) imaging features of the developing femur in fetal pig specimens. MATERIALS AND METHODS:MR images of 15 fetal pig femurs, which were categorized into three groups of specimens representing each third of the gestational period, were used to compare increasing femoral lengt...

journal_title：Radiology

authors： Connolly SA,Jaramillo D,Hong JK,Shapiro F

更新日期：2004-11-01 00:00:00

abstract：:High-activity iodine-125 sources in plastic catheters were surgically placed in the cerebral white matter of healthy beagle dogs and later removed. Reference doses, calculated at a point 0.75 mm from the source, ranged from 10 to 40 Gy. Necrosis, vascular-related damage, and edema were quantified by computed tomograph...

journal_title：Radiology

authors： Turowski K,Fike JR,Cann CE,Higgins RJ,Davis RL,Gutin PH,Phillips TL,Weaver KA

更新日期：1986-03-01 00:00:00

abstract：PURPOSE:To evaluate the ability of fluoroscopic images obtained during air enemas to depict or exclude lead points of intussusceptions and other abnormalities that require surgical treatment in the absence of intussusception. MATERIALS AND METHODS:The clinical, radiologic, surgical, and pathologic findings were review...

journal_title：Radiology

authors： Miller SF,Landes AB,Dautenhahn LW,Pereira JK,Connolly BL,Babyn PS,Alton DJ,Daneman A

更新日期：1995-11-01 00:00:00

abstract：PURPOSE:To determine the optimal dose of intravenous contrast material for helical computed tomography (CT) of the abdomen on the basis of patient weight. MATERIALS AND METHODS:A prospective randomized study of helical CT of the abdomen was performed by using different doses of intravenous contrast material in 221 pat...

journal_title：Radiology

authors： Yamashita Y,Komohara Y,Takahashi M,Uchida M,Hayabuchi N,Shimizu T,Narabayashi I

更新日期：2000-09-01 00:00:00

abstract：:The techniques and results of percutaneous transluminal angioplasty (TPA) of the renal arteries were evaluated in 20 hypertensive patients with 25 renal artery stenoses. Follow-up angiograms have been obtained in nine patients. Many patients had evidence of both essential and angiotensinogenic hypertension. Eleven pat...

journal_title：Radiology

authors： Tegtmeyer CJ,Dyer R,Teates CD,Ayers CR,Carey RM,Wellons HA Jr,Stanton LW

更新日期：1980-06-01 00:00:00

abstract：:During 1989 and 1990, 25,788 screening and 1,077 diagnostic breast imaging examinations were performed. Audit was performed in 6-month intervals to allow comparison of performance over time. Sensitivity, positive predictive value, and stage of disease were determined for each radiologist, for patients over and those u...

journal_title：Radiology

authors： Robertson CL

更新日期：1993-04-01 00:00:00

abstract：:A lymphatico-osseous communication was demonstrated by lymphangiography in a patient with primary lymphedema of the left leg. The superficial lymph vessels were markedly hyperplastic and contrast medium was visible within the epiphyseal portions of the femur, tibia, fibula, and foot bones. Biopsy of the affected femur...

journal_title：Radiology

authors： Abe R

更新日期：1978-11-01 00:00:00

abstract：PURPOSE:To prospectively compare the reproducibility of normal liver apparent diffusion coefficient (ADC) measurements by using different respiratory motion compensation techniques with multiple breath-hold (MBH), free-breathing (FB), respiratory-triggered (RT), and navigator-triggered (NT) diffusion-weighted (DW) imag...

journal_title：Radiology

authors： Chen X,Qin L,Pan D,Huang Y,Yan L,Wang G,Liu Y,Liang C,Liu Z

更新日期：2014-04-01 00:00:00

abstract：PURPOSE:To investigate contralateral breast biopsy histologic findings in women with breast cancer. MATERIALS AND METHODS:Histologic findings in 237 patients with breast cancer who underwent contralateral breast biopsy for clinically or mammographically detected abnormalities were retrospectively reviewed. Malignant f...

journal_title：Radiology

authors： Roubidoux MA,Helvie MA,Wilson TE,Lai NE,Paramagul C

更新日期：1997-06-01 00:00:00

abstract：PURPOSE:To retrospectively determine if the interval increase of right ventricular-left ventricular (RV/LV) diameter ratio from negative prior to positive current computed tomographic (CT) examination findings for pulmonary embolism (PE) is more accurate for predicting 30-day mortality than positive CT ratio alone, by ...

journal_title：Radiology

authors： Lu MT,Cai T,Ersoy H,Whitmore AG,Quiroz R,Goldhaber SZ,Rybicki FJ

更新日期：2008-01-01 00:00:00

abstract：:A new renal imaging agent, technetium-99m mercaptoacetyltriglycine (MAG3, mertiatide), is currently undergoing clinical trials. Like iodine-131 orthoiodohippurate (OIH)--and unlike all other available agents--it is avidly secreted by the renal tubules. Fifty patients underwent simultaneous renal imaging studies with I...

journal_title：Radiology

authors： Russell CD,Thorstad BL,Stutzman ME,Yester MV,Fowler D,Dubovsky EV

更新日期：1989-08-01 00:00:00

abstract：PURPOSE:To compare the accuracy of magnetic resonance (MR) imaging with that of the current clinical standard of endoscopy and endoscopic biopsy, to determine whether MR imaging depicts subclinical cancers missed at endoscopy and endoscopic biopsy, and to determine whether MR imaging can identify patients without nasop...

journal_title：Radiology

authors： King AD,Vlantis AC,Bhatia KS,Zee BC,Woo JK,Tse GM,Chan AT,Ahuja AT

更新日期：2011-02-01 00:00:00

abstract：PURPOSE:To assess relevant parameters for the minimally invasive elimination of breast tumors by using a selective application of magnetite and exposure of the breast to an alternating magnetic field. MATERIALS AND METHODS:The specific absorption rate (SAR) of different magnetite samples was determined calorimetricall...

journal_title：Radiology

authors： Hilger I,Andrä W,Hergt R,Hiergeist R,Schubert H,Kaiser WA

更新日期：2001-02-01 00:00:00

abstract：PURPOSE:To evaluate the accuracy of transvaginal ultrasound (US) and gadolinium-enhanced magnetic resonance (MR) imaging in the assessment of the intratumoral structure of an adnexal mass. MATERIALS AND METHODS:The population comprised 82 patients with an adnexal mass who underwent both transvaginal US and gadolinium-...

journal_title：Radiology

authors： Komatsu T,Konishi I,Mandai M,Togashi K,Kawakami S,Konishi J,Mori T

更新日期：1996-01-01 00:00:00