Case 253: Thrombosed Umbilical Venous Varix in an Infant.

abstract：:A retrospective review of the CT and ultrasound scans from examinations of 30 patients who had hepatocellular carcinoma (hepatoma) was undertaken with special emphasis placed on evaluation of hepatic distribution of tumor, vascular invasion, and extrahepatic spread. Although both CT and ultrasound detected hepatoma in...

journal_title：Radiology

authors： LaBerge JM,Laing FC,Federle MP,Jeffrey RB Jr,Lim RC Jr

更新日期：1984-08-01 00:00:00

abstract：PURPOSE:To investigate the effect of change in portal venous blood flow rates on the size and shape of ablations created by a 2.45-GHz microwave ablation device. MATERIALS AND METHODS:This study was exempt from review by the institutional animal care and use committee. An in vitro bovine liver model perfused with auto...

journal_title：Radiology

authors： Dodd GD 3rd,Kreidler SM,Lanctot AC,Glueck DH

更新日期：2015-12-01 00:00:00

abstract：:In a patient with choledocholithiasis, a duodenal diverticulum precluded endoscopic retrograde bile duct cannulation. A transhepatic catheter was used to opacify the bile ducts and to guide the endoscopic sphincterotome into the major duodenal papilla. Because limited sphincterotomy did not allow extraction or spontan...

journal_title：Radiology

authors： Becker CD,Fache JS,Gibney RG,Scudamore CH,Burhenne HJ

更新日期：1987-11-01 00:00:00

abstract：:Positive-mode xeroradiography is an excellent method of visualizing soft-tissue structures in mammography and other procedures; however, toner deletions over a large area may preclude adequate delineation of the soft tissues near high-density structures such as bone. Use of the negative mode in the development cycle p...

journal_title：Radiology

authors： Osterman FA Jr,Zeman GH,Rao GU,Gayler B,Kirk BG,James AE Jr

更新日期：1977-09-01 00:00:00

abstract：PURPOSE:To evaluate the 15-year trend in the use of computed tomography (CT) in hospitalized pediatric trauma patients admitted to Harborview Medical Center (HMC) from 1996 to 2010. MATERIALS AND METHODS:This Health Insurance Portability and Accountability Act-compliant retrospective study was approved by the institut...

journal_title：Radiology

authors： Roudsari BS,Psoter KJ,Vavilala MS,Mack CD,Jarvik JG

更新日期：2013-05-01 00:00:00

abstract：:Purpose To compare arterial spin labeling (ASL) data between low- and high-grade brain tumors in children to establish a cutoff to distinguish low- from high-grade neoplasms and to assess potential correlations between cerebral blood flow (CBF) and quantitative histologic microvascular data. Materials and Methods Appr...

journal_title：Radiology

authors： Dangouloff-Ros V,Deroulers C,Foissac F,Badoual M,Shotar E,Grévent D,Calmon R,Pagès M,Grill J,Dufour C,Blauwblomme T,Puget S,Zerah M,Sainte-Rose C,Brunelle F,Varlet P,Boddaert N

更新日期：2016-11-01 00:00:00

abstract：:Institutional review board approval, with waived consent, was obtained to develop a spine-labeling algorithm with retrospectively obtained deidentified HIPAA-compliant data. An automated magnetic resonance (MR) imaging technique to rapidly survey the entire spine and provide definitive numbering of disks and vertebrae...

journal_title：Radiology

authors： Weiss KL,Storrs JM,Banto RB

更新日期：2006-04-01 00:00:00

abstract：:The authors designed and built an overlapping surface coil assembly for magnetic resonance imaging of the spine. A small and a large coil are included, and use of one can be switched to the other without need for patient repositioning. The images are not degraded, and screening studies can immediately be followed by d...

journal_title：Radiology

authors： Arakawa M,Krasnor S,Fehn J,McCarten B,Kaufman L

更新日期：1987-09-01 00:00:00

abstract：:The role of chest computed tomography (CT) in the evaluation of clinically staged T1N0M0 lung cancer is controversial. Using quantitative methods of decision analysis and data already available in the medical literature, the authors show how the clinical utility and cost effectiveness of chest CT are dependent on seve...

journal_title：Radiology

authors： Black WC,Armstrong P,Daniel TM

更新日期：1988-05-01 00:00:00

abstract：:The pelvic area was prospectively examined with transabdominal and transperineal ultrasonography (US) in 22 patients referred for US evaluation for possible complications of cesarean section. The region of the uterine wound was seen with transabdominal US in all patients and with transperineal US in 20. The two in who...

journal_title：Radiology

authors： Hertzberg BS,Bowie JD,Kliewer MA

更新日期：1993-08-01 00:00:00

abstract：PURPOSE:To compare breast cancer disease-free survival (DFS) outcomes of patients with newly diagnosed breast cancer without and with preoperative magnetic resonance (MR) imaging. MATERIALS AND METHODS This study was approved by an institutional review board, and informed consent was waived. From 2004 to 2009 (unilater...

journal_title：Radiology

authors： Yi A,Cho N,Yang KS,Han W,Noh DY,Moon WK

更新日期：2015-09-01 00:00:00

abstract：:Successful opacification and distention of the inferior vena cava was obtained simultaneously with computed tomography by contrast infusion through a lower-extremity vein. Images obtained by this method displayed retroperitoneal anatomical relationships to better advantage, permitting more accurate interpretation of t...

journal_title：Radiology

authors： Pillari G

更新日期：1979-03-01 00:00:00

abstract：PURPOSE:To investigate the clinical parameters that are associated with the development of brain edema of hypertensive encephalopathy in patients with preeclampsia-eclampsia. MATERIALS AND METHODS:Twenty-eight patients with preeclampsia-eclampsia and neurologic symptoms underwent magnetic resonance (MR) imaging. Clini...

journal_title：Radiology

authors： Schwartz RB,Feske SK,Polak JF,DeGirolami U,Iaia A,Beckner KM,Bravo SM,Klufas RA,Chai RY,Repke JT

更新日期：2000-11-01 00:00:00

abstract：:A 22 gauge "skinny core" (Madayag) biopsy needle, an 18 gauge Menghini needle, and a 14 gauge Tru-cut needle were compared in 51 patients. The Madayag needle was found to have a high recovery rate and provided adequate histological information in a large percentage of cases. However, the larger needles more consistent...

journal_title：Radiology

authors： Haaga JR,LiPuma JP,Bryan PJ,Balsara VJ,Cohen AM

更新日期：1983-03-01 00:00:00

abstract：:Preliminary work has shown that normal lungs have predictable CT patterns and density ranges. In emphysema, there are irregular zones of extremely low density as well as an overall low mean density. CT appears to have considerable potential for early detection of pulmonary emphysema and characterization of the degree ...

journal_title：Radiology

authors： Rosenblum LJ,Mauceri RA,Wellenstein DE,Bassano DA,Cohen WN,Heitzman ER

更新日期：1978-11-01 00:00:00

abstract：:A cancellation of signal intensity at the interface separating selected tissue-equivalent materials is observed in inversion recovery proton MR images. The absence of signal intensity at the interface is always one pixel wide and appears only when the tissue-equivalent materials forming the interface differ substantia...

journal_title：Radiology

authors： Hearshen DO,Ellis JH,Carson PL,Shreve P,Aisen AM

更新日期：1986-08-01 00:00:00

abstract：PURPOSE:To compare the accuracy of a fluid-attenuated inversion-recovery (FLAIR) sequence with that of a conventional double spin-echo (SE) sequence in the identification of increased signal intensity of the hippocampus in mesial temporal sclerosis (MTS). MATERIALS AND METHODS:Three blinded reviewers independently gra...

journal_title：Radiology

authors： Jack CR Jr,Rydberg CH,Krecke KN,Trenerry MR,Parisi JE,Rydberg JN,Cascino GD,Riederer SJ

更新日期：1996-05-01 00:00:00

abstract：PURPOSE:To compare superior mesenteric artery (SMA) blood flow in healthy volunteers and patients with stenoses in the fasting state and after food intake by using phase-contrast (PC) cine magnetic resonance (MR) imaging. MATERIALS AND METHODS:Ten healthy subjects, four asymptomatic patients (three with 50% stenosis, ...

journal_title：Radiology

authors： Li KC,Whitney WS,McDonnell CH,Fredrickson JO,Pelc NJ,Dalman RL,Jeffrey RB Jr

更新日期：1994-01-01 00:00:00

abstract：PURPOSE:To assess the clinical and radiographic findings of pulmonary infections diagnosed by using invasive means. MATERIALS AND METHODS:Fifty-nine episodes of pulmonary infection were diagnosed in 52 (7.2%) of a consecutive series of 725 adult bone marrow transplant recipients. Causative organisms, time of diagnoses...

journal_title：Radiology

authors： Leung AN,Gosselin MV,Napper CH,Braun SG,Hu WW,Wong RM,Gasman J

更新日期：1999-03-01 00:00:00

abstract：:Three patients presented with meningitis associated with congenital defects of the inner ear, consisting of a cyst-like cochlea and a short, wide horizontal semicircular canal. The findings were easily identified on routine skull radiographs, alleviating the need for further studies and leading to treatment of the def...

journal_title：Radiology

authors： Sykora GF,Kaufman B,Katz RL

更新日期：1980-05-01 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：:Background Modern high-spatial-resolution radiologic methods enable increasingly detailed volumetric postmortem investigations of human neuroanatomy for diagnostic, research, and educational purposes. Purpose To evaluate the viability of postmortem x-ray phase-contrast micro-CT to provide tissue-conserving, high-spati...

journal_title：Radiology

authors： Barbone GE,Bravin A,Mittone A,Grosu S,Ricke J,Cavaletti G,Djonov V,Coan P

更新日期：2021-01-01 00:00:00

abstract：PURPOSE:To estimate the cost-effectiveness of computed tomographic (CT) colonography for colorectal cancer (CRC) screening in average-risk asymptomatic subjects in the United States aged 50 years. MATERIALS AND METHODS:Enrollees in the American College of Radiology Imaging Network National CT Colonography Trial provid...

journal_title：Radiology

authors： Vanness DJ,Knudsen AB,Lansdorp-Vogelaar I,Rutter CM,Gareen IF,Herman BA,Kuntz KM,Zauber AG,van Ballegooijen M,Feuer EJ,Chen MH,Johnson CD

更新日期：2011-11-01 00:00:00

abstract：PURPOSE:To explore the lower limits for radiofrequency (RF) power-induced specific absorption rate (SAR) achievable at 1.5 T for brain magnetic resonance (MR) imaging without loss of tissue signal or contrast present in high-SAR clinical imaging in order to create a potentially viable MR method at ultra-low RF power to...

journal_title：Radiology

authors： Sarkar SN,Alsop DC,Madhuranthakam AJ,Busse RF,Robson PM,Rofsky NM,Hackney DB

更新日期：2011-05-01 00:00:00

abstract：PURPOSE:To evaluate the feasibility of using the ultrasmall superparamagnetic iron oxide (USPIO) SH U 555 C as an intravascular contrast agent for magnetic resonance (MR) image-guided vascular procedures with an open MR imaging system. MATERIALS AND METHODS:All experiments were performed with MR imaging at 0.2 T. MR i...

journal_title：Radiology

authors： Wacker FK,Reither K,Ebert W,Wendt M,Lewin JS,Wolf KJ

更新日期：2003-02-01 00:00:00

abstract：PURPOSE:To determine the feasibility of mapping the spatial variation of cartilage T2 relaxation time in vivo in the pediatric knee with a 1.5-T clinical magnetic resonance (MR) imaging system and the manufacturer's body gradient coil. MATERIALS AND METHODS:Twenty-five children and adolescents (age range, 5-17 years; ...

journal_title：Radiology

authors： Dardzinski BJ,Laor T,Schmithorst VJ,Klosterman L,Graham TB

更新日期：2002-10-01 00:00:00

abstract：:Background Improving the differentiation of uterine sarcomas from atypical leiomyomas remains a clinical challenge and is needed to avoid inappropriate surgery. Purpose To develop a diagnostic algorithm including diffusion-weighted MRI criteria to differentiate malignant uterine sarcomas from benign atypical leiomyoma...

journal_title：Radiology

authors： Abdel Wahab C,Jannot AS,Bonaffini PA,Bourillon C,Cornou C,Lefrère-Belda MA,Bats AS,Thomassin-Naggara I,Bellucci A,Reinhold C,Fournier LS

更新日期：2020-11-01 00:00:00

abstract：PURPOSE:To assess interobserver and intraobserver reliability of three quantitative measures of coronary artery calcium burden: calcium "score," number of calcified lesions, and calcified area. MATERIALS AND METHODS:Electron beam computed tomographic (CT) scanning was used in a series of 25 patients to detect coronary...

journal_title：Radiology

authors： Kaufmann RB,Sheedy PF 2nd,Breen JF,Kelzenberg JR,Kruger BL,Schwartz RS,Moll PP

更新日期：1994-02-01 00:00:00

abstract：:Purpose To investigate the prevalence of symptomatic carotid web in patients with acute ischemic stroke due to intracranial large vessel occlusion, to determine the clinical and imaging profile of patients with carotid web as well as their association with ischemic stroke, and to determine the interobserver agreement ...

journal_title：Radiology

authors： Compagne KCJ,van Es ACGM,Berkhemer OA,Borst J,Roos YBWEM,van Oostenbrugge RJ,van Zwam WH,Majoie CBLM,Marquering HA,Dippel DWJ,van der Lugt A,Emmer BJ,MR CLEAN Trial Investigators.

更新日期：2018-03-01 00:00:00

abstract：:Purpose To evaluate the frequency, patterns, and prognostic importance of metastatic hepatic involvement in serous ovarian cancer. Materials and Methods This institutional review board-approved retrospective study, with waived informed consent, included 244 patients with pathologically proven serous ovarian cancer (me...

journal_title：Radiology

authors： O'Neill AC,Somarouthu B,Tirumani SH,Braschi-Amirfarzan M,Van den Abbeele AD,Ramaiya NH,Shinagare AB

更新日期：2017-01-01 00:00:00