Arterial MR imaging phase-contrast flow measurement: improvements with varying velocity sensitivity during cardiac cycle.

abstract：PURPOSE:To examine whether dynamic contrast material-enhanced (DCE) magnetic resonance (MR) imaging measurement of bone marrow perfusion in acute myeloid leukemia (AML) patients in complete remission (CR) is associated with outcome and survival. MATERIALS AND METHODS:After institutional review board approval and infor...

journal_title：Radiology

authors： Chen BB,Hsu CY,Yu CW,Hou HA,Liu CY,Wei SY,Chou WC,Tien HF,Shih TT

更新日期：2011-03-01 00:00:00

abstract：:Knowledge of the timing and course of neonatal intracranial hemorrhage is essential in determining the etiology of hemorrhage, since the key to preventing neurologic damage in newborns is to define preventable causes and to treat the complications of hemorrhage. In an intensive study of 49 neonates delivered less than...

journal_title：Radiology

authors： Rumack CM,Manco-Johnson ML,Manco-Johnson MJ,Koops BL,Hathaway WE,Appareti K

更新日期：1985-01-01 00:00:00

abstract：:To reduce radiation exposure to patients and staff during neurointerventional procedures, region-of-interest (ROI) techniques were used with fluoroscopy, road mapping, and digital subtraction angiography in 19 patients. ROI filters, made of multiple layers of gadolinium, were attached to the collimators. Patient skin ...

journal_title：Radiology

authors： Rudin S,Guterman LR,Granger WE,Bednarek DR,Hopkins LN

更新日期：1996-06-01 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：:Clinically useful quantities of 52Fe have been prepared at the Brookhaven Linac Isotope Producer (BLIP) by bombarding manganese or nickel targets with medium energy protons. After chemical separation, 52Fe is loaded onto a generator column from which carrier-free 52Mn is eluted. The 52mMn generator is potentially usef...

journal_title：Radiology

authors： Ku TH,Richards P,Stang LG Jr,Prach T

更新日期：1979-08-01 00:00:00

abstract：PURPOSE:To determine the prognostic importance of periintervention serum levels of acute-phase reactants in 6-month restenosis after stent implantation in the carotid artery. MATERIALS AND METHODS:One hundred eight consecutive patients with 70% or greater stenosis of the internal carotid artery (ICA) according to the ...

journal_title：Radiology

authors： Schillinger M,Exner M,Mlekusch W,Rumpold H,Ahmadi R,Sabeti S,Lang W,Wagner O,Minar E

更新日期：2003-05-01 00:00:00

abstract：:58 cases of breast cancer treated primarily by radiotherapy were evaluated to determine the optimum dose for local control. Of 36 patients with T1 + T2 lesions who had tumorectomy prior to radiotherapy, incomplete excision of tumor was demonstrated on microscopic examination in 18. The minimum tumor dose to the breast...

journal_title：Radiology

authors： Ghossein NA,Stacey P,Alpert RT,Ager PJ,Krishnaswamy V

更新日期：1976-11-01 00:00:00

abstract：:A radionuclide study using technetium-99m-labelled milk feeding is described for the detection of gastroesophageal reflux and aspiration in children. A comparison of findings in 39 patients referred for both radiographic and radionuclide studies showed that barium studies were positive in 25.6% and radionuclide studie...

journal_title：Radiology

authors： Heyman S,Kirkpatrick JA,Winter HS,Treves S

更新日期：1979-05-01 00:00:00

abstract：:Ultrasound (US) of the liver surface with a high-frequency, small-parts, short-focused probe has been proposed as a method of diagnosing cirrhosis. US of the liver was performed in 50 consecutive patients undergoing diagnostic liver biopsy to assess the clinical usefulness of this noninvasive procedure in diagnosing h...

journal_title：Radiology

authors： Ladenheim JA,Luba DG,Yao F,Gregory PB,Jeffrey RB,Garcia G

更新日期：1992-10-01 00:00:00

abstract：:By performing CT scanning during contrast sialography, tumors within the parotid gland can be shown and their configuration in relation to the remaining normal salivary gland and surrounding structures can be appreciated. This permits better evaluation of the relationship of the tumor to the facial nerve, possible ext...

journal_title：Radiology

authors： Mancuso A,Rice D,Hanafee W

更新日期：1979-07-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate whether dynamic contrast agent-enhanced (DCE) magnetic resonance (MR) imaging parameters assessed by a computer-aided evaluation program are associated with recurrence-free and overall survival in breast cancer patients who received neoadjuvant chemotherapy (NAC). MATERIALS AND METH...

journal_title：Radiology

authors： Yi A,Cho N,Im SA,Chang JM,Kim SJ,Moon HG,Han W,Park IA,Noh DY,Moon WK

更新日期：2013-09-01 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 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：PURPOSE:To determine whether a 10-minute magnetic resonance (MR) imaging examination of the upper abdomen provides sufficiently comprehensive information to replace a longer MR protocol. MATERIALS AND METHODS:Images obtained with selected breathing-independent and breath hold MR sequences, with 2 minutes of total acqu...

journal_title：Radiology

authors： Semelka RC,Balci NC,Op de Beeck B,Reinhold C

更新日期：1999-04-01 00:00:00

abstract：:Depiction of small-bowel pathologic conditions was optimized with use of a negative luminal contrast agent, spectral fat suppression, and gadolinium enhancement in an excised gut phantom. The method was applied in nine patients in conjunction with standard enteroclysis examinations. Bulk susceptibility effects of oral...

journal_title：Radiology

authors： Faber SC,Stehling MK,Holzknecht N,Gauger J,Helmberger T,Reiser M

更新日期：1997-10-01 00:00:00

abstract：PURPOSE:To determine if the addition of three-dimensional (3D) proton magnetic resonance (MR) spectroscopic imaging to endorectal MR imaging helps diagnose extracapsular extension (ECE) of prostate cancer. MATERIALS AND METHODS:Endorectal MR imaging and 3D MR spectroscopic imaging were performed in 53 patients with pr...

journal_title：Radiology

authors： Yu KK,Scheidler J,Hricak H,Vigneron DB,Zaloudek CJ,Males RG,Nelson SJ,Carroll PR,Kurhanewicz J

更新日期：1999-11-01 00:00:00

abstract：:The authors evaluated the effect on mammographic examinations of the use of synchrotron radiation to detect phase-perturbation effects, which are higher than absorption effects for soft tissue in the energy range of 15-25 keV. Detection of phase-perturbation effects was possible because of the high degree of coherence...

journal_title：Radiology

authors： Arfelli F,Bonvicini V,Bravin A,Cantatore G,Castelli E,Palma LD,Michiel MD,Fabrizioli M,Longo R,Menk RH,Olivo A,Pani S,Pontoni D,Poropat P,Prest M,Rashevsky A,Ratti M,Rigon L,Tromba G,Vacchi A,Vallazza E,Zanconat

更新日期：2000-04-01 00:00:00

abstract：:Magnetic resonance (MR) imaging and computed tomography (CT) were used to study severe syringomyelia, in which the syrinx was so eccentric relative to the center of the spinal cord that at initial examination it appeared to be an exophytic extramedullary mass, in five of six patients with type 2 Arnold-Chiari malforma...

journal_title：Radiology

authors： Heinz R,Curnes J,Friedman A,Oakes J

更新日期：1992-04-01 00:00:00

abstract：:Phantom and in vitro studies were performed to evaluate the potential application of digital circular tomosynthesis in imaging of the breast and upper cervical spine. A prototype volumetric x-ray system was used to image a mammographic phantom, a fresh mastectomy specimen, and a head phantom containing the upper cervi...

journal_title：Radiology

authors： Stevens GM,Birdwell RL,Beaulieu CF,Ikeda DM,Pelc NJ

更新日期：2003-08-01 00:00:00

abstract：:One hundred twenty-five patients with biopsy proved clinical stage A or B prostatic carcinoma were evaluated with biplane transrectal ultrasonography (US) prior to radical prostatectomy. Sonograms were evaluated for capsular transgression of the tumor into the posterior and posterolateral aspects of the glands as mani...

journal_title：Radiology

authors： Hamper UM,Sheth S,Walsh PC,Holtz PM,Epstein JI

更新日期：1991-03-01 00:00:00

abstract：PURPOSE:To assess the diagnostic value of spinal ultrasonography (US) in pediatric patients. MATERIALS AND METHODS:The findings on 38 spinal US scans in 30 patients (mean age, 5.5 months) were compared with those of corresponding magnetic resonance (MR) images. RESULTS:MR imaging showed a normal spinal canal in 14 of...

journal_title：Radiology

authors： Rohrschneider WK,Forsting M,Darge K,Tröger J

更新日期：1996-08-01 00:00:00

abstract：:Acquisition and measurement of left ventricular (LV) volumes with a three-dimensional data set of cine magnetic resonance (MR) images from apex to base is a time-consuming process. Results of a study with 10 healthy volunteers and 10 patients with LV hypertrophy were prospectively evaluated. The heart was shown in the...

journal_title：Radiology

authors： Dulce MC,Mostbeck GH,Friese KK,Caputo GR,Higgins CB

更新日期：1993-08-01 00:00:00

abstract：:Phantom studies were performed to develop a technique for linear tomography of the craniocervical junction with a digital fluoroscopic angiographic C-arm unit. Section thicknesses were similar to those used at conventional tomography, and the radiation dose was lower. C-arm tomography was possible with a 6-second expo...

journal_title：Radiology

authors： Ridpath CA,Wilson AJ,Langer SG,Mann FA,Hunter JC

更新日期：1999-06-01 00:00:00

abstract：PURPOSE:To compare the reliability of acoustic radiation force impulse (ARFI) imaging and supersonic shear imaging (SSI) in measurement of liver stiffness. MATERIALS AND METHODS:This study was approved by the institutional review board, and written informed consent was obtained for all patients. Seventy-nine patients ...

journal_title：Radiology

authors： Woo H,Lee JY,Yoon JH,Kim W,Cho B,Choi BI

更新日期：2015-12-01 00:00:00

abstract：PURPOSE:To determine diagnostic accuracy of four-channel multi-detector row computed tomography (CT) in emergency room and inpatient populations suspected of having acute pulmonary embolism (PE) who prospectively underwent both CT and pulmonary arteriography (PA). MATERIALS AND METHODS:Patients referred for PA to asse...

journal_title：Radiology

authors： Winer-Muram HT,Rydberg J,Johnson MS,Tarver RD,Williams MD,Shah H,Namyslowski J,Conces D,Jennings SG,Ying J,Trerotola SO,Kopecky KK

更新日期：2004-12-01 00:00:00

abstract：:Zones of high and low signal intensity on magnetic resonance (MR) images of articular cartilage were correlated with the four histologic zones normally found in such cartilage. Grossly normal articular cartilage from knees and ankles of a fresh cadaver were used in the study. The three zones identified on MR images in...

journal_title：Radiology

authors： Modl JM,Sether LA,Haughton VM,Kneeland JB

更新日期：1991-12-01 00:00:00

abstract：PURPOSE:To compare the antiquated x-ray system of Hoffmans and van Kleef (circa 1896) with modern x-ray equipment in terms of radiation dose, x-ray beam properties, image quality, and electrical parameters. MATERIALS AND METHODS:The antiquated x-ray system consisted of a Ruhmkorff inductor, battery, and Crookes tube. ...

journal_title：Radiology

authors： Kemerink M,Dierichs TJ,Dierichs J,Huynen HJ,Wildberger JE,van Engelshoven JM,Kemerink GJ

更新日期：2011-05-01 00:00:00

abstract：PURPOSE:To determine the value of magnetic resonance (MR) imaging in predicting resectability of head and neck neoplasms around the carotid arteries. MATERIALS AND METHODS:Forty-nine patients (28 male patients and 21 female patients aged 17-79 years; mean, 57.3 years) with head and neck masses and clinical evidence of...

journal_title：Radiology

authors： Yousem DM,Hatabu H,Hurst RW,Seigerman HM,Montone KT,Weinstein GS,Hayden RE,Goldberg AN,Bigelow DC,Kotapka MJ

更新日期：1995-06-01 00:00:00

abstract：PURPOSE:To compare histologic findings of atypical ductal hyperplasia (ADH) at 14-gauge, directional, vacuum-assisted breast biopsy (hereafter, vacuum-assisted biopsy) and at 14-gauge, automated, large-core breast biopsy (hereafter, large-core biopsy) with findings at histologic examination after surgical biopsy. MATE...

journal_title：Radiology

authors： Jackman RJ,Burbank F,Parker SH,Evans WP 3rd,Lechner MC,Richardson TR,Tocino I,Wray AB

更新日期：1997-08-01 00:00:00

abstract：:In spite of long-term adjunctive oral dissolution therapy, residual gallstones have been reported in up to 50% of gallstone patients 3 months after extracorporeal shock-wave lithotripsy. Six women and five men, aged 31-75 years, underwent percutaneous endoscopic cholecystolithotripsy between April 1988 and October 198...

journal_title：Radiology

authors： Hruby W,Stackl W,Urban M,Armbruster C,Marberger M

更新日期：1989-11-01 00:00:00