First-third ejection fraction at rest compared with exercise radionuclide angiography in assessing patients with coronary artery disease.

abstract：PURPOSE:To present prevalence screening data from a nonrandomized screening trial by using low-dose computed tomography (CT) and a simple algorithm based on the size and attenuation of detected nodules to guide diagnostic work-up. MATERIALS AND METHODS:Eight hundred seventeen asymptomatic volunteers (age range, 40-78 ...

journal_title：Radiology

authors： Diederich S,Wormanns D,Semik M,Thomas M,Lenzen H,Roos N,Heindel W

更新日期：2002-03-01 00:00:00

abstract：PURPOSE:A prospective study was performed to compare the sensitivity and specificity of magnetic resonance (MR) imaging and computed tomography (CT) both performed during arterial portography in depicting focal hepatic masses. MATERIALS AND METHODS:Eleven patients with 31 pathologically proved focal hepatic masses wer...

journal_title：Radiology

authors： Soyer P,Laissy JP,Sibert A,Blanc F,Belghiti J,Marmuse JP,Zeitoun G,Levesque M,Menu Y

更新日期：1994-03-01 00:00:00

abstract：:Tarsal navicular stress fractures are a potential source of disabling foot pain in physically active individuals. The diagnosis of tarsal navicular stress fracture requires a high index of clinical and radiographic suspicion because the fracture is only rarely evident on routine radiographs or standard tomograms. The ...

journal_title：Radiology

authors： Pavlov H,Torg JS,Freiberger RH

更新日期：1983-09-01 00:00:00

abstract：:Gadolinium chelates, intended as intravenous contrast media for magnetic resonance imaging, have been regarded as nonnephrotoxic and recommended to replace iodinated contrast media in patients with azotemia who are undergoing digital subtraction angiography (DSA). High intraarterial doses (up to 220 mmol of gadodiamid...

journal_title：Radiology

authors： Nyman U,Elmståhl B,Leander P,Nilsson M,Golman K,Almén T

更新日期：2002-05-01 00:00:00

abstract：PURPOSE:To evaluate the frequency, risk factors, and clinical significance of aggressive intrasegmental recurrence (AIR) found after radiofrequency (RF) ablation for hepatocellular carcinoma (HCC). MATERIALS AND METHODS:Institutional review board approval was obtained for this retrospective study. Between March 2005 a...

journal_title：Radiology

authors： Kang TW,Lim HK,Lee MW,Kim YS,Rhim H,Lee WJ,Gwak GY,Paik YH,Lim HY,Kim MJ

更新日期：2015-07-01 00:00:00

abstract：PURPOSE:To describe a posterior labral cleft at direct computed tomographic (CT) arthrography of the shoulder by using multidetector CT and to compare this finding with a true posterior labral tear. MATERIALS AND METHODS:Institutional ethics review board approval was obtained, and informed consent was waived. One hund...

journal_title：Radiology

authors： Lee GY,Choi JA,Oh JH,Choi JY,Hong SH,Kang HS

更新日期：2009-12-01 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：:An 8-F guiding catheter has been developed for use with coaxial angioplasty balloon catheters in angioplasty of the femoral artery from the contralateral approach when antegrade puncture of the ipsilateral femoral artery is not possible. The catheter may be used for angioplasty of the femoral artery bifurcation and th...

journal_title：Radiology

authors： Kaufman SL

更新日期：1990-11-01 00:00:00

abstract：:To determine and quantify the major sources of anxiety for patients undergoing magnetic resonance (MR) imaging and to suggest means by which to eliminate or diminish their negative effects, the authors studied anxiety in 46 subjects. Of these, 20 randomly selected subjects who successfully completed the examination pa...

journal_title：Radiology

authors： Quirk ME,Letendre AJ,Ciottone RA,Lingley JF

更新日期：1989-02-01 00:00:00

abstract：PURPOSE:To determine the effect of surrounding tissue type on coagulation necrosis from radiofrequency (RF) ablation in a homogeneous animal tumor model. MATERIALS AND METHODS:Thirty canine venereal sarcomas were implanted in three tissue sites (subcutaneous, kidney, and lung) in 13 mildly immunosuppressed dogs. Five ...

journal_title：Radiology

authors： Ahmed M,Liu Z,Afzal KS,Weeks D,Lobo SM,Kruskal JB,Lenkinski RE,Goldberg SN

更新日期：2004-03-01 00:00:00

abstract：:Calcifications located in the dermis of the breast may appear indistinguishable from intramammary calcifications. The authors present a sign, called the tattoo sign, that can help radiologists identify dermal calcifications. When mammograms are compared, calcifications that maintain a fixed relationship to each other ...

journal_title：Radiology

authors： Homer MJ,D'Orsi CJ,Sitzman SB

更新日期：1994-07-01 00:00:00

abstract：:A prospective study was undertaken to establish the normal spectrum and timing of gadolinium-enhanced magnetic resonance (MR) imaging findings in 15 patients who had resolution of symptoms after successful lumbar disk surgery. Enhancement of the facet joints (in 88% of disk levels) and paraspinal muscles (100%) decrea...

journal_title：Radiology

authors： Boden SD,Davis DO,Dina TS,Parker CP,O'Malley S,Sunner JL,Wiesel SW

更新日期：1992-01-01 00:00:00

abstract：:The addition of polytomography considerably increases the sensitivity of pneumoencephalography. The chiasmatic area lends itself particularly well to investigation by polytomoencephalography. In a series of 28 patients, the transverse dimension of the optic chiasm ranged from 4 to 20 mm, with a mean of 18 mm. The post...

journal_title：Radiology

authors： Johnson JC,Lubow M,Stears J

更新日期：1975-03-01 00:00:00

abstract：:Thirty-two patients with a known primary malignancy and a symptomatic malignant pleural effusion underwent small-bore-catheter thoracostomy and talc pleurodesis. Twenty-three patients (72%) had a complete response; four (12%), a partial response; and five (16%), no response. Symptoms in all those who responded were cl...

journal_title：Radiology

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

更新日期：1999-01-01 00:00:00

abstract：:History A 13-year-old girl presented for evaluation and further management of spastic diplegia cerebral palsy. Absence of the corpus callosum was noted at screening prenatal head ultrasonography. She was born at full term via spontaneous vaginal delivery. Physical examination revealed decreased axial muscle tone and i...

journal_title：Radiology

authors： Yahyavi-Firouz-Abadi N,Poretti A,Idowu OR,Hoon AH Jr,Huisman TA,Izbudak I

更新日期：2016-12-01 00:00:00

abstract：:Twenty-three patients with previously treated medulloblastoma had brain scintigrams revealed posterior fossa recurrence in 15 patients and supratentorial metastases in 9; only 1 of the latter was clinically suspected. Two subdural hematomas and one calvarial metastasis were also detected. Comparison with other diagnos...

journal_title：Radiology

authors： Clark EE,Hattner RS

更新日期：1976-06-01 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：PURPOSE:To retrospectively determine the accuracy of endorectal magnetic resonance (MR) imaging in demonstrating seminal vesicle invasion (SVI) and to investigate the MR imaging features that can predict SVI. MATERIALS AND METHODS:The Institutional Review Board granted exempt status for this retrospective study, with ...

journal_title：Radiology

authors： Sala E,Akin O,Moskowitz CS,Eisenberg HF,Kuroiwa K,Ishill NM,Rajashanker B,Scardino PT,Hricak H

更新日期：2006-03-01 00:00:00

abstract：:Between the portal vein and the inferior vena cava lies a small space that may be occupied by multiple anatomic structures including the caudate and papillary processes of the caudate lobe of the liver, portacaval lymph nodes, replaced or accessory right hepatic arteries, posterosuperior pancreaticoduodenal vessels, t...

journal_title：Radiology

authors： Zirinsky K,Auh YH,Rubenstein WA,Kneeland JB,Whalen JP,Kazam E

更新日期：1985-08-01 00:00:00

abstract：:Gadolinium-labeled diethylenetriaminepentaacetic acid was used as a contrast agent for stereotactic magnetic resonance (MR) imaging in six selected patients with brain tumors who underwent stereotactic biopsy. Regions of contrast enhancement demonstrated by computed tomography (CT) and MR imaging in four of the six pa...

journal_title：Radiology

authors： Earnest F 4th,Kelly PJ,Scheithauer BW,Kall BA,Cascino TL,Ehman RL,Forbes GS,Axley PL

更新日期：1988-03-01 00:00:00

abstract：:Spiral volumetric computed tomography (CT) with single breath-hold technique was compared with conventional sequential CT in 39 patients. The spiral CT protocol consisted of a 10 mm/sec table feed during a 24-second breath hold at 145 mA, with reconstruction of images at 10-mm intervals; one (n = 21) or two (n = 18) s...

journal_title：Radiology

authors： Remy-Jardin M,Remy J,Giraud F,Marquette CH

更新日期：1993-05-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate the long-term results of radiofrequency (RF) ablation combined with chemoembolization (combination therapy) as compared with hepatectomy for the treatment of early-stage hepatocellular carcinoma (HCC). MATERIALS AND METHODS:The study was approved by the institutional review board, a...

journal_title：Radiology

authors： Yamakado K,Nakatsuka A,Takaki H,Yokoi H,Usui M,Sakurai H,Isaji S,Shiraki K,Fuke H,Uemoto S,Takeda K

更新日期：2008-04-01 00:00:00

abstract：PURPOSE:To investigate the feasibility of breast tissue characterization in terms of water, lipid, and protein contents with a spectral computed tomographic (CT) system based on a cadmium zinc telluride (CZT) photon-counting detector by using postmortem breasts. MATERIALS AND METHODS:Nineteen pairs of postmortem breas...

journal_title：Radiology

authors： Ding H,Klopfer MJ,Ducote JL,Masaki F,Molloi S

更新日期：2014-09-01 00:00:00

abstract：:Liposomal gadolinium diethylenetriaminepentaacetic acid (DTPA) encapsulated within 70- and 400-nm vesicles was tested as a contrast agent for magnetic resonance (MR) imaging of the liver in rats with hepatic metastases. Liposomal Gd-DTPA caused significant improvement in contrast between liver and tumor (P less than ....

journal_title：Radiology

authors： Unger EC,Winokur T,MacDougall P,Rosenblum J,Clair M,Gatenby R,Tilcock C

更新日期：1989-04-01 00:00:00

abstract：:Findings from computed tomography (CT) and ultrasound (US) examinations of 74 patients who were clinically thought to have pelvic masses and of 110 patients who had possible recurrence of pelvic tumors were analyzed. There was no significant difference in the ability of the two modalities to identify masses or to pred...

journal_title：Radiology

authors： Sanders RC,McNeil BJ,Finberg HJ,Hessel SJ,Siegelman SS,Adams DF,Alderson PO,Abrams HL

更新日期：1983-02-01 00:00:00

abstract：PURPOSE:To determine whether addition of quality measure (QM) of shear-wave (SW) velocity (Vs) estimation can increase SW elastography sensitivity for breast cancer. MATERIALS AND METHODS:With written informed consent, this institutional review board-approved, HIPAA-compliant study included 143 women (mean age, 48.5 y...

journal_title：Radiology

authors： Barr RG,Zhang Z

更新日期：2015-04-01 00:00:00

abstract：PURPOSE:To quantify dynamic enhancement of breast lesions with echo-planar and conventional magnetic resonance (MR) imaging, to correlate these data with histologic findings and vessel density, and to evaluate MATERIALS AND METHODS:Twenty female patients with 22 breast lesions underwent conventional and MR echo-planar...

journal_title：Radiology

authors： Hulka CA,Smith BL,Sgroi DC,Tan L,Edmister WB,Semple JP,Campbell T,Kopans DB,Brady TJ,Weisskoff RM

更新日期：1995-10-01 00:00:00

abstract：PURPOSE:To identify opportunities for improving patient-centered communication about diagnostic imaging tests that involve the use of radiation in a cancer care setting. MATERIALS AND METHODS:Institutional review board approval and informed consent were obtained for this HIPAA-compliant study. Patient knowledge, infor...

journal_title：Radiology

authors： Thornton RH,Dauer LT,Shuk E,Bylund CL,Banerjee SC,Maloney E,Fox LB,Beattie CM,Hricak H,Hay J

更新日期：2015-05-01 00:00:00

abstract：:Uroradiological examinations on 33 patients subjected to abdomino-perineal resection were analyzed. The most common finding was medial displacement of both ureters, with the right one frequently crossing the midline. Bladder deformity, sometimes severe, was present in all patients. Localized ureteral narrowing due to ...

journal_title：Radiology

authors： Barbaric ZL,Wolfe DE,Segal AJ

更新日期：1978-08-01 00:00:00

abstract：:In 34 of 847 patients (4%), testicular cysts were discovered with high-resolution ultrasound (US). Sixteen had a cystic testicular tumor, and US images showed multiple cysts and solid tumor portions in 12 of these 16 (75%). Eighteen patients had nonneoplastic cysts: Five had cysts of the tunica albuginea, and 13 had i...

journal_title：Radiology

authors： Hamm B,Fobbe F,Loy V

更新日期：1988-07-01 00:00:00