Switched surface coil system for bilateral MR imaging.

abstract：:From July 1993 through June 1994, the authors performed 42 ultrasound (US)-guided core biopsies with use of a coaxial technique in which a 14- or 15-gauge core biopsy needle was passed through a 12-gauge introducer needle. This technique proved to be effective in all 42 biopsies. Use of the coaxial technique decreased...

journal_title：Radiology

authors： Kaplan SS,Racenstein MJ,Wong WS,Hansen GC,McCombs MM,Bassett LW

更新日期：1995-02-01 00:00:00

abstract：:Mammograms of 220 patients who underwent spot localization for removal of nonpalpable breast lesions were reviewed for accuracy of interpretation. Results of subsequent biopsy indicated malignancy in 77 cases. The interpretations of mammograms obtained before biopsy were incorrect in 71 cases (27 false-negative and 44...

journal_title：Radiology

authors： Hermann G,Janus C,Schwartz IS,Krivisky B,Bier S,Rabinowitz JG

更新日期：1987-11-01 00:00:00

abstract：:Patients with sleep-disordered breathing often have physiologic and anatomic abnormalities of the upper airway that are demonstrable while awake. An ultrafast computed tomographic (CT) scanner was used to measure the oropharyngeal and nasopharyngeal cross-sectional areas of 11 patients with obstructive sleep apnea. Tw...

journal_title：Radiology

authors： Galvin JR,Rooholamini SA,Stanford W

更新日期：1989-06-01 00:00:00

abstract：:Serial pulmonary imaging has proved to be effective in the evaluation of patients undergoing total joint arthroplasty. A clinical dilemma arises in asymptomatic patients whose postoperative pulmonary images differ from the preoperative images. The authors prospectively evaluated 403 patients with serial imaging to det...

journal_title：Radiology

authors： Foley M,Maslack MM,Rothman RH,Casey MP,Lugano EM,Parry CE,Balderston RA,Booth RE Jr

更新日期：1989-08-01 00:00:00

abstract：:Purpose To investigate the feasibility of deformable, motion-coherent modeling based on electrocardiography-gated multidetector computed tomographic (CT) angiography of the thoracic aorta and to evaluate whether quantifiable information on aortic wall stress as a function of patient-specific cardiovascular parameters ...

journal_title：Radiology

authors： Mileto A,Heye TJ,Makar RA,Hurwitz LM,Marin D,Boll DT

更新日期：2016-07-01 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：PURPOSE:To evaluate the accuracy and precision of a radiographic absorptiometry (RA) method for assessment of bone mineral of the middle phalanges. MATERIALS AND METHODS:Nineteen cadaveric hands were radiographed with an aluminum wedge, once at 50 kVp and 400 mA and once at 60 kVp and 300 mA. Bone mineral content (BMC...

journal_title：Radiology

authors： Yang SO,Hagiwara S,Engelke K,Dhillon MS,Guglielmi G,Bendavid EJ,Soejima O,Nelson DL,Genant HK

更新日期：1994-09-01 00:00:00

abstract：:Rod-shaped reflectors such as those used in the AIUM test object resonate at medical ultrasound frequencies, producing artifacts posterior to the reflector. Rods of various diameters and materials were examined to determine their resonant properties, and the effect of the Plexiglas scanning surface of the enclosure on...

journal_title：Radiology

authors： Hefner LV,Goldstein A

更新日期：1981-04-01 00:00:00

abstract：PURPOSE:To evaluate positron emission tomography (PET) with fluorine-18-labeled fluorodeoxyglucose (FDG) for detection of pancreatic cancer compared with computed tomography (CT) and ultrasonography (US). MATERIALS AND METHODS:Forty patients with suspected pancreatic cancer underwent static PET after intravenous injec...

journal_title：Radiology

authors： Bares R,Klever P,Hauptmann S,Hellwig D,Fass J,Cremerius U,Schumpelick V,Mittermayer C,Büll U

更新日期：1994-07-01 00:00:00

abstract：:Tisseel, a fibrin sealant not approved for use in the United States, was tested in abdominal fistulas and sinuses (13 patients) and interventional biliary procedures (11 patients). The two components of Tisseel were introduced via a double-lumen catheter and formed a fibrin gel at the point of contact. Tracts were sea...

journal_title：Radiology

authors： Brady AP,Malone DE,Deignan RW,O'Donovan N,McGrath FP

更新日期：1995-08-01 00:00:00

abstract：:The clinical, radiologic, and histopathologic features of three cases of clear cell chondrosarcoma are described. On radiographs, this rather benign-appearing tumor resembles a chondroblastoma when it occurs at the end of a long bone, and may occasionally show a calcified matrix. However, it has distinctive tumor cell...

journal_title：Radiology

authors： Kumar R,David R,Cierney G 3rd

更新日期：1985-01-01 00:00:00

abstract：PURPOSE:To evaluate dynamic magnetic resonance (MR) defecography performed with a superconducting, open-configuration system in diagnosis of defecation disorders. MATERIALS AND METHODS:Five healthy volunteers and 15 patients with defecation disorders were studied with MR defecography performed with a superconducting, ...

journal_title：Radiology

authors： Schoenenberger AW,Debatin JF,Guldenschuh I,Hany TF,Steiner P,Krestin GP

更新日期：1998-03-01 00:00:00

abstract：:Pelvic sonograms from 61 consecutive patients with suspected ectopic pregnancy and an additional 17 proved ectopic pregnancy cases were reviewed retrospectively. Special attention was given to the appearance of the uterus and intrauterine fluid collections in the absence of a fetal pole. Criteria for the exclusion of ...

journal_title：Radiology

authors： Bradley WG,Fiske CE,Filly RA

更新日期：1982-04-01 00:00:00

abstract：:Purpose To assess the feasibility of a magnetically assisted remote-controlled (MARC) catheter system under magnetic resonance (MR) imaging guidance for performing a simple endovascular procedure (ie, renal artery embolization) in vivo and to compare with x-ray guidance to determine the value of MR imaging guidance an...

journal_title：Radiology

authors： Lillaney PV,Yang JK,Losey AD,Martin AJ,Cooke DL,Thorne BR,Barry DC,Chu A,Stillson C,Do L,Arenson RL,Saeed M,Wilson MW,Hetts SW

更新日期：2016-10-01 00:00:00

abstract：:Purpose To compare long-term graft and patient survival after percutaneous angioplasty (PTA) or stent placement for transplant renal artery stenosis (TRAS) with a control cohort without TRAS. Materials and Methods This is a retrospective matched cohort study of 41 patients (median age, 49 years; range, 18-72 years), i...

journal_title：Radiology

authors： Patel U,Kumar S,Johnson OW,Jeon JH,Das R

更新日期：2019-02-01 00:00:00

abstract：:An anomalous branch of the cavernous carotid artery, not reported previously, is described. Its appearance and distribution were unlike those of any known cavernous branch, originating at the level where the trigeminal artery is usually found but having no communication with the basilar artery. Its distribution approx...

journal_title：Radiology

authors： Scotti G

更新日期：1975-07-01 00:00:00

abstract：PURPOSE:Evaluate effect of prostatic irradiation on erectile function. MATERIALS AND METHODS:Forty-seven male adult rats were divided into three groups according to a single radiation dose to the prostate: control (no irradiation) (n = 15), 1,000 cGy (n = 15), and 2,000 cGy (n = 17). Five months after irradiation, rat...

journal_title：Radiology

authors： Carrier S,Hricak H,Lee SS,Baba K,Morgan DM,Nunes L,Ross GY,Phillips TL,Lue TF

更新日期：1995-04-01 00:00:00

abstract：PURPOSE:To retrospectively measure repeat rates for high-cost imaging studies, determining their causes and trends, and the impact of radiologist recommendations for a repeat examination on imaging volume. MATERIALS AND METHODS:This HIPAA-compliant study had institutional review board approval, with waiver of informed...

journal_title：Radiology

authors： Lee SI,Saokar A,Dreyer KJ,Weilburg JB,Thrall JH,Hahn PF

更新日期：2007-03-01 00:00:00

abstract：:Steeple-shaped shadows adjacent to the diaphragm are common in upper lobe collapse due to a variety of causes. They call attention to upper lobe collapse and should not be considered indicative of intrinsic lower lobe abnormality. ...

journal_title：Radiology

authors： Kattan KR,Eyler WR,Felson B

更新日期：1980-03-01 00:00:00

abstract：:Background Screening breast MRI is recommended for women with BRCA mutation or a history of chest radiation, but guidelines are equivocal for MRI screening of women with a personal history of breast cancer or high-risk lesion. Purpose To evaluate screening breast MRI performance across women with different elevated br...

journal_title：Radiology

authors： Sippo DA,Burk KS,Mercaldo SF,Rutledge GM,Edmonds C,Guan Z,Hughes KS,Lehman CD

更新日期：2019-07-01 00:00:00

abstract：PURPOSE:To evaluate whether exposure to strong static magnetic fields (SMFs), of up to 10 T, affects the growth and cycle distribution of and the micronucleus formation in monolayered Chinese hamster ovary CHO-K1 cells. MATERIALS AND METHODS:The authors developed a system to expose cultured cells to strong SMFs immedi...

journal_title：Radiology

authors： Nakahara T,Yaguchi H,Yoshida M,Miyakoshi J

更新日期：2002-09-01 00:00:00

abstract：:Both ultrasonography and x-ray mammography were performed on a male patient who had breast carcinoma. While the x-ray mammographic features were highly suggestive of malignancy, the sonographic findings were subtle. Because of the technical difficulties associated with x-ray mammography of the male breast, ultrasound ...

journal_title：Radiology

authors： Jackson VP,Gilmor RL

更新日期：1983-11-01 00:00:00

abstract：PURPOSE:To investigate the effect of injection rate of contrast medium on aortic and hepatic peak enhancement at computed tomography. MATERIALS AND METHODS:Early pharmacokinetics of contrast enhancement was analyzed theoretically and simulated with a compartment model. Contrast enhancement curves were generated from t...

journal_title：Radiology

authors： Bae KT,Heiken JP,Brink JA

更新日期：1998-02-01 00:00:00

abstract：:Spermatic venography with hot contrast material embolization was undertaken in 81 patients with varicoceles and infertility. Long-term follow-up information was available in 91% of the patients, and there was an overall conception rate of 40.5%. Embolization with hot contrast material was easily performed without spec...

journal_title：Radiology

authors： Smith TP,Hunter DW,Cragg AH,Darcy MD,Castaneda-Zuniga WR,Sinclair TR,Ercole C,Hulbert JC,Kaye KW,Amplatz K

更新日期：1988-07-01 00:00:00

abstract：:Relaxation times (T1 and T2) were measured in vivo in mongrel dogs at fields of 0.3, 0.5, 1.0, 1.35, and 1.5 tesla (T). T1 was measured using nine values of inversion time ranging from 10 to 1,280 msec. T2 was measured with a four-point multiple spin-echo sequence. Relaxation times were calculated for muscle, kidney c...

journal_title：Radiology

authors： Johnson GA,Herfkens RJ,Brown MA

更新日期：1985-09-01 00:00:00

abstract：:Improved visualization of the initial bolus of contrast material injected via a lateral Cl-2 puncture for cervical myelography can be obtained by using real-time digital subtraction fluoroscopy. As little as 0.1 ml of metrizamide (250 mg%) can be demonstrated easily. ...

journal_title：Radiology

authors： Sherry RG,Anderson RE

更新日期：1984-04-01 00:00:00

abstract：:An intraoral acrylic mold technique to guide and maintain beam direction during oral roentgen therapy is described. It is used in combination with the treatment cone and a lead tube and protective diaphragm for collimation of the beam. ...

journal_title：Radiology

authors： Pantoja E,Rodriguez-Ibanez I

更新日期：1976-02-01 00:00:00

abstract：PURPOSE:To evaluate the vascular anatomy of the prostate gland with transrectal color Doppler ultrasound (US). MATERIALS AND METHODS:Thirty-five normal prostate glands were studied. Imaging findings were interpreted on the basis of findings from previous anatomic studies. RESULTS:Distribution of flow signals within t...

journal_title：Radiology

authors： Neumaier CE,Martinoli C,Derchi LE,Silvestri E,Rosenberg I

更新日期：1995-08-01 00:00:00

abstract：:Purpose To assess whether contrast material-enhanced ultrasonography (US) can be used to differentiate responders from nonresponders among patients with clinically active Crohn disease after 6 weeks of pharmacologic treatment. Materials and Methods This prospective study was approved by our ethics committee, and writt...

journal_title：Radiology

authors： Quaia E,Sozzi M,Angileri R,Gennari AG,Cova MA

更新日期：2016-11-01 00:00:00

abstract：:Background Acute stroke because of basilar artery occlusion (BAO) represents 1% of all ischemic strokes. However, recanalization rates and treatment outcome for the different pathologic subtypes of BAO stroke are not fully understood. Purpose To compare the recanalization rate and clinical outcomes of mechanical throm...

journal_title：Radiology

authors： Baik SH,Park HJ,Kim JH,Jang CK,Kim BM,Kim DJ

更新日期：2019-06-01 00:00:00