Multi-detector row CT coronary angiography: influence of reconstruction technique and heart rate on image quality.

abstract：:BackgroundMethylphenidate (MPH) is highly effective in treating attention-deficit/hyperactivity disorder (ADHD). However, not much is known about its effect on the development of human brain white matter (WM).PurposeTo determine whether MPH modulates WM microstructure in an age-dependent fashion in a randomized double...

journal_title：Radiology

authors： Bouziane C,Filatova OG,Schrantee A,Caan MWA,Vos FM,Reneman L

更新日期：2019-10-01 00:00:00

abstract：:An international working group has modified the Atlanta classification for acute pancreatitis to update the terminology and provide simple functional clinical and morphologic classifications. The modifications (a) address the clinical course and severity of disease, (b) divide acute pancreatitis into interstitial edem...

journal_title：Radiology

authors： Thoeni RF

更新日期：2012-03-01 00:00:00

abstract：:In order to demonstrate the potential advantages of proton imaging for medical use, a 205-MeV proton beam was developed using the Argonne National Laboratory Booster I synchrotron. Data were taken using a narrow scanning beam and an electronic detector system. The dose reduction and an improved mass resulution over th...

journal_title：Radiology

authors： Kramer SL,Moffett DR,Martin RL,Colton EP,Steward VW

更新日期：1980-05-01 00:00:00

abstract：:While invasive imaging techniques, especially selective conventional coronary angiography, will remain vital to planning and guiding catheter-based and surgical treatment of significantly stenotic coronary lesions, the comprehensive and serial assessment of asymptomatic or minimally symptomatic stages of coronary arte...

journal_title：Radiology

authors： Schoenhagen P,Halliburton SS,Stillman AE,Kuzmiak SA,Nissen SE,Tuzcu EM,White RD

更新日期：2004-07-01 00:00:00

abstract：:Radionuclide findings in a case of cavernous sinus occlusion by an intracavernous aneurysm are described. A brain image obtained 10 minutes after injection of 99Tc pertechnetate shows diminished activity in the area of the right cavernous sinus and increased activity in the area of the right sylvian veins; these are a...

journal_title：Radiology

authors： Hahn FJ,Schapiro RL

更新日期：1976-01-01 00:00:00

abstract：:Purpose To evaluate the performance of three imaging methods (radiography, dual-energy x-ray absorptiometry [DXA], and quantitative computed tomography [CT]) and that of a numerical analysis with finite element modeling (FEM) in the prediction of failure load of the proximal femur and to identify the best densitometri...

journal_title：Radiology

authors： Pottecher P,Engelke K,Duchemin L,Museyko O,Moser T,Mitton D,Vicaut E,Adams J,Skalli W,Laredo JD,Bousson V

更新日期：2016-09-01 00:00:00

abstract：:Metabolic syndrome has become an important public health problem and has reached epidemic proportions globally. Metabolic syndrome is characterized by a cluster of metabolic abnormalities in an individual, with insulin resistance as the main characteristic. The major adverse consequence of metabolic syndrome is cardio...

journal_title：Radiology

authors： van der Meer RW,Lamb HJ,Smit JW,de Roos A

更新日期：2012-07-01 00:00:00

abstract：PURPOSE:To assess the relationship between heart valve history and susceptibility artifacts at magnetic resonance (MR) imaging of the brain in patients with Björk-Shiley convexoconcave (BSCC) valves. MATERIALS AND METHODS:MR images of the brain were obtained in 58 patients with prosthetic heart valves: 20 patients had...

journal_title：Radiology

authors： van Gorp MJ,van der Graaf Y,de Mol BA,Bakker CJ,Witkamp TD,Ramos LM,Mali WP

更新日期：2004-03-01 00:00:00

abstract：PURPOSE:To explore the association between diffuse excessive high signal intensity (DEHSI), punctate white matter (WM) lesions, and ventricular dilatation around term-equivalent age (TEA) and at clinical follow-up at 2 years in very preterm infants and the effect on neurodevelopment. MATERIALS AND METHODS:Ethical appr...

journal_title：Radiology

authors： de Bruïne FT,van den Berg-Huysmans AA,Leijser LM,Rijken M,Steggerda SJ,van der Grond J,van Wezel-Meijler G

更新日期：2011-12-01 00:00:00

abstract：:A Kimray-Greenfield filter was inadvertently placed in the right atrium of a patient with multiple pulmonary emboli. A percutaneous technique with the use of a chest tube and basket catheter was performed to retrieve and remove the filter. ...

journal_title：Radiology

authors： Tsai FY,Myers TV,Ashraf A,Shah DC

更新日期：1988-05-01 00:00:00

abstract：PURPOSE:To determine if clinical or computed tomographic (CT) findings can be used to distinguish self-limiting cases of adult small-bowel intussusception from those requiring surgery. MATERIALS AND METHODS:Thirty-seven cases of adult small-bowel intussusception were identified by a retrospective computerized search o...

journal_title：Radiology

authors： Lvoff N,Breiman RS,Coakley FV,Lu Y,Warren RS

更新日期：2003-04-01 00:00:00

abstract：:Spurting of blood from standard arterial needles during guide-wire insertion can be controlled easily with a syringe and a simple needle inserted along the syringe plunger. With this method, blood droplets that may be infected with the hepatitis or human immunodeficiency virus will not come into contact with the head ...

journal_title：Radiology

authors： Cope C,Machan L

更新日期：1990-03-01 00:00:00

abstract：:Transrectal endosonography is one of the most sensitive techniques to evaluate prostatic disease and is far more accurate than conventional sonography. A retrospective review of sonographic characteristics of the prostate was made in an attempt to define the ability of the technique to distinguish benign from malignan...

journal_title：Radiology

authors： Rifkin MD,Friedland GW,Shortliffe L

更新日期：1986-01-01 00:00:00

abstract：PURPOSE:To provide a broad perspective concerning the recent use of receiver operating characteristic (ROC) analysis in medical imaging by reviewing ROC studies published in Radiology between 1997 and 2006 for experimental design, imaging modality, medical condition, and ROC paradigm. MATERIALS AND METHODS:Two hundred...

journal_title：Radiology

authors： Shiraishi J,Pesce LL,Metz CE,Doi K

更新日期：2009-12-01 00:00:00

abstract：:Computed tomographic brain scans of the newborn exhibit relatively greater lucency of white matter compared to the mature patient. This study correlated the x-ray attenuation of white matter with gestational age in 23 neonates, both premature and term. The gray-white matter attenuation difference was calculated and pl...

journal_title：Radiology

authors： Brant-Zawadzki M,Enzmann DR

更新日期：1981-04-01 00:00:00

abstract：:Innovations in design of a dedicated breast scanner resulted in automation of the scanning process, the production of high resolution images of the whole breast and an efficient mode of image review. The results of clinical evaluation of the prototype of this breast scanner investigating normal breasts as well as beni...

journal_title：Radiology

authors： Maturo VG,Zusmer NR,Gilson AJ,Smoak WM,Janowitz WR,Bear BE,Goddard J,Dick DE

更新日期：1980-11-01 00:00:00

abstract：:In nine neonates, spontaneous regression of a multicystic dysplastic kidney (MCDK) was witnessed by means of repeated ultrasound (US) examinations. In three of these patients, the diagnosis was made in utero. Follow-up examinations at the ages of 3, 5, and 32 weeks post-partum showed what would have been called unilat...

journal_title：Radiology

authors： Pedicelli G,Jequier S,Bowen AD,Boisvert J

更新日期：1986-10-01 00:00:00

abstract：:Partial Budd-Chiari syndrome was produced in 8 monkeys by obstructing 2 or 3 lobar hepatic veins with a rapidly polymerizing plastic. Hepatic angiography done 1-3 months later revealed crowded tortuous arteries and a dense hepatogram in the lobe with venous occlusion. Unobstructed lobes were hypertrophied. Retrograde ...

journal_title：Radiology

authors： Maguire R,Doppman JL

更新日期：1977-03-01 00:00:00

abstract：:Laboratory tests that are commonly used in the evaluation of rheumatic diseases are described. The techniques for performing these tests; their use in screening, diagnosis, and follow-up; and the pitfalls in interpreting their results are discussed to provide the radiologist with an understanding of the current techno...

journal_title：Radiology

authors： Sack KE,Genant HK

更新日期：1981-06-01 00:00:00

abstract：PURPOSE:To investigate blood perfusion of nonfractured, normal-appearing vertebral bodies with regard to age and sex. MATERIALS AND METHODS:Dynamic magnetic resonance imaging (160 images obtained in 80 seconds) was performed from T10 to L5 in 66 patients. Patients were assigned to three groups: group 1, those 50 years...

journal_title：Radiology

authors： Chen WT,Shih TT,Chen RC,Lo SY,Chou CT,Lee JM,Tu HY

更新日期：2001-07-01 00:00:00

abstract：PURPOSE:To determine whether the computed tomographic (CT) appearances of multiple pulmonary nodules in patients with acquired immunodeficiency syndrome (AIDS) can help differentiate the potential infectious and neoplastic causes. MATERIALS AND METHODS:The thoracic CT scans obtained in 60 patients with AIDS and multip...

journal_title：Radiology

authors： Edinburgh KJ,Jasmer RM,Huang L,Reddy GP,Chung MH,Thompson A,Halvorsen RA Jr,Webb RA

更新日期：2000-02-01 00:00:00

abstract：:The ability of magnetic resonance (MR) imaging to detect and distinguish various stages of obstruction in the canine kidney was investigated. MR images were obtained at acute, subacute, and chronic stages of experimentally produced hydronephrosis. The renal cortex was distinguished from the renal medulla in the normal...

journal_title：Radiology

authors： Thickman D,Kundel H,Biery D

更新日期：1984-07-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate fused positron emission tomography (PET)/computed tomography (CT) in depicting the primary lesion in cancer of an unknown primary tumor, compared with PET, CT, and PET and CT side-by-side evaluation. MATERIALS AND METHODS:Institutional review board approval and informed consent were...

journal_title：Radiology

authors： Gutzeit A,Antoch G,Kühl H,Egelhof T,Fischer M,Hauth E,Goehde S,Bockisch A,Debatin J,Freudenberg L

更新日期：2005-01-01 00:00:00

abstract：PURPOSE:To retrospectively evaluate the sensitivity and reproducibility of a computer-aided detection (CAD) system applied to serial digital mammograms obtained in women with breast cancer, with histologic analysis as the reference standard. MATERIALS AND METHODS:This study was institutional review board approved, and...

journal_title：Radiology

authors： Kim SJ,Moon WK,Cho N,Cha JH,Kim SM,Im JG

更新日期：2008-01-01 00:00:00

abstract：:Purpose To determine the degree of preoperative fatty degeneration within muscles, postoperative longitudinal changes in fatty degeneration, and differences in fatty degeneration between patients with full-thickness supraspinatus tears who do and those who do not experience a retear after surgery. Materials and Method...

journal_title：Radiology

authors： Nozaki T,Tasaki A,Horiuchi S,Ochi J,Starkey J,Hara T,Saida Y,Yoshioka H

更新日期：2016-08-01 00:00:00

abstract：:An overview of current air-contrast stomach examination techniques is offered: (a) Hampton's technique which does not use distension; (b) the Japanese method which utilizes the relaxant drug Buscopan, good distension, and much patient rotation; (c) a third method in which no drugs are used but more distension is obtai...

journal_title：Radiology

authors： Miller RE

更新日期：1975-12-01 00:00:00

abstract：PURPOSE:To assess the feasibility of automatic needle-guide tracking by using a real-time phase-only cross correlation ( POCC phase-only cross correlation ) algorithm-based sequence for transrectal 3-T in-bore magnetic resonance (MR)-guided prostate biopsies. MATERIALS AND METHODS:This study was approved by the ethics...

journal_title：Radiology

authors： Zamecnik P,Schouten MG,Krafft AJ,Maier F,Schlemmer HP,Barentsz JO,Bock M,Fütterer JJ

更新日期：2014-12-01 00:00:00

abstract：PURPOSE:To evaluate the prevalence and appearance of azygos arch valves at intravenous contrast material-enhanced computed tomography (CT). MATERIALS AND METHODS:Findings of 309 intravenous contrast-enhanced spiral CT examinations of the chest were retrospectively reviewed. The presence of contrast material reflux int...

journal_title：Radiology

authors： Yeh BM,Coakley FV,Sanchez HC,Wilson MW,Reddy GP,Gotway MB

更新日期：2004-01-01 00:00:00

abstract：:The records of 22 patients in whom wall thickening of the renal collecting system was seen at ultrasound (US) were retrospectively reviewed. Wall thickening was found in 15 patients with renal transplants and seven with native kidneys. Severe thickening occurred with transplant rejection, but thickening also occurred ...

journal_title：Radiology

authors： Nicolet V,Carignan L,Dubuc G,Hébert G,Bourdon F,Paquin F

更新日期：1988-08-01 00:00:00

abstract：PURPOSE:To assess placental perfusion and permeability in mice with magnetic resonance (MR) imaging. MATERIALS AND METHODS:This study was conducted according to French law and National Institutes of Health recommendations for animal care. Twenty-two pregnant BALB/c mice were examined at 1.5 T with a single-section dua...

journal_title：Radiology

authors： Taillieu F,Salomon LJ,Siauve N,Clément O,Faye N,Balvay D,Vayssettes C,Frija G,Ville Y,Cuenod CA

更新日期：2006-12-01 00:00:00