Influence of image acquisition parameters on CT artifacts and polyp depiction in spiral CT colonography: in vitro evaluation.

abstract：PURPOSE:To determine the usefulness of sonographically obtained resistive indexes (RIs) in the diagnosis of pancreas allograft rejection. MATERIALS AND METHODS:Findings were studied from 78 transduodenal pancreas allograft biopsies that were ultrasound-guided and cystoscopically directed. The 78 biopsies included 40 t...

journal_title：Radiology

authors： Nelson NL,Largen PS,Stratta RJ,Taylor RJ,Grune MT,Hapke MR,Radio SJ

更新日期：1996-07-01 00:00:00

abstract：:Twenty-eight patients with intra-abdominal mesenchymal sarcomas were examined with gray scale ultrasonography. Masses were present in the mesentery, abdominal hollow viscera, liver, and retroperitoneal areas. Four different ultrasonic patterns were observed in the extra hepatic abdominal masses: (a) hyperechoic masses...

journal_title：Radiology

authors： Bree RL,Green B

更新日期：1978-07-01 00:00:00

abstract：:Because of recent challenges in the literature regarding the validity of the older crown-rump length (CRL) data developed with conventional static-image ultrasound scanners, the authors evaluated the relationship between CRL and menstrual age of fetuses in a population of 416 patients with good menstrual dates. By usi...

journal_title：Radiology

authors： Hadlock FP,Shah YP,Kanon DJ,Lindsey JV

更新日期：1992-02-01 00:00:00

abstract：PURPOSE:To investigate the histopathologic anatomy of calcium pyrophosphate dihydrate (CPPD) crystal deposition in and around the atlantoaxial joint and the association between CPPD crystal deposition and subchondral cysts, erosions, and fracture involving the odontoid process of the axis. MATERIALS AND METHODS:One ad...

journal_title：Radiology

authors： Kakitsubata Y,Boutin RD,Theodorou DJ,Kerr RM,Steinbach LS,Chan KK,Pathria MN,Haghighi P,Resnick D

更新日期：2000-07-01 00:00:00

abstract：PURPOSE:To determine the imaging and histopathologic appearance of fractures of the hands and feet in abused infants. MATERIALS AND METHODS:The imaging findings in 11 abused infants with fractures of the hands and feet were examined retrospectively. All 11 infants underwent skeletal surveys; five infants also underwen...

journal_title：Radiology

authors： Nimkin K,Spevak MR,Kleinman PK

更新日期：1997-04-01 00:00:00

abstract：:Computed tomography (CT) used in cases of blunt abdominal trauma has been found sensitive in detection of bowel and mesenteric injuries and discrimination of operable from nonoperable candidates. In 51 patients with suspected bowel or mesenteric injury following blunt abdominal trauma, CT correctly depicted bowel hema...

journal_title：Radiology

authors： Rizzo MJ,Federle MP,Griffiths BG

更新日期：1989-10-01 00:00:00

abstract：:Both carotid bifurcations were examined in 353 patients over a 20-month interval using a combination of real-time and pulsed Doppler ultrasound (duplex scanning). Angiographic correlation was available in 72 cases. Stenosis of the internal carotid was evaluated using a Doppler input frequency of 5 MHz and a scan angle...

journal_title：Radiology

authors： Jacobs NM,Grant EG,Schellinger D,Byrd MC,Richardson JD,Cohan SL

更新日期：1985-02-01 00:00:00

abstract：:Over a period of 60 months, percutaneous nonendoscopic gastrostomy for enteral feeding was successfully performed with the Seldinger technique in 250 of 252 consecutive patients. Local anesthetics alone (without intravenous sedatives) were used in 248 patients (98%). The 30-day mortality was 14.2% and included two pro...

journal_title：Radiology

authors： Halkier BK,Ho CS,Yee AC

更新日期：1989-05-01 00:00:00

abstract：:Purpose To evaluate an objective computed tomographic (CT) criterion for distinguishing between part-solid (PS) and nonsolid (NS) lung nodules. Materials and Methods This study received institutional review board approval, and patients gave informed consent. Preoperative CT studies in all patients who underwent surger...

journal_title：Radiology

authors： Revel MP,Mannes I,Benzakoun J,Guinet C,Léger T,Grenier P,Lupo A,Fournel L,Chassagnon G,Bommart S

更新日期：2018-01-01 00:00:00

abstract：:A nodular density seen at the posterior lung base on lateral chest radiographs proved to be normal bone in the spine. This nodule results from slight thickening of the bone at the superior aspect of the area where the two laminae join to form the spinous process. ...

journal_title：Radiology

authors： Shortsleeve MJ,Foster SC

更新日期：1979-05-01 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：:Hyperpolarized metabolic magnetic resonance (MR) imaging offers greatly enhanced sensitivity to multinuclear MR spectroscopy, opening up a new tool with which to noninvasively assess metabolic changes in the diseased heart. In this issue of Radiology, O h-Ici et al ( 1 ) have demonstrated this ability by exploring the...

journal_title：Radiology

authors： Tyler DJ,Neubauer S

更新日期：2016-03-01 00:00:00

abstract：:This study compared hand-held arterial compression with compression by a mechanical clamp to achieve hemostasis following transfemoral catheterization in 3,255 patients from six different hospitals. The time spent in manual compression of the artery averaged 33.5 minutes compared with 19.9 minutes using the clamp. The...

journal_title：Radiology

authors： Semler HJ

更新日期：1985-01-01 00:00:00

abstract：:From a clinical-radiologic standpoint, there are a limited number of structures and disease entities in the temporal bone with which one must be familiar in order to proficiently interpret a computed tomographic or magnetic resonance imaging study of the temporal bone. It is helpful to examine the region in an organiz...

journal_title：Radiology

authors： Juliano AF,Ginat DT,Moonis G

更新日期：2013-10-01 00:00:00

abstract：PURPOSE:To assess the effectiveness of and complications associated with metallic stent placement for treatment of benign diseases of the colon. MATERIALS AND METHODS:With radiologic guidance, the authors placed metallic stents in 10 patients with benign diseases of the colon: Nine stents were placed in the rectosigmo...

journal_title：Radiology

authors： Paúl L,Pinto I,Gómez H,Fernández-Lobato R,Moyano E

更新日期：2002-06-01 00:00:00

abstract：:The distal small-bowel loops in the pelvis do not always lend themselves to palpation of easy visualization during conventional small-bowel examinations. When this occurs, an angled view of the pelvis, such as that used to uncoil the sigmoid colon during barium-enema examinations, can separate these overlapping segmen...

journal_title：Radiology

authors： Fisher JK

更新日期：1982-07-01 00:00:00

abstract：:Detection of pulmonary nodules using spin-echo magnetic resonance (MR) imaging was compared with detection using computed tomography (CT). Of the 25 patients studied independently by two radiologists, no lung nodules were detected in 11 (CT or MR), ten had a single nodule, and four had multiple nodules. The lesions no...

journal_title：Radiology

authors： Müller NL,Gamsu G,Webb WR

更新日期：1985-06-01 00:00:00

abstract：:A case of tuberculosis mimicking carcinoma in the distal colon is reported. The difficulty in diagnosing a solitary tuberculous colonic lesion, a review of the literature, and a differential diagnosis are presented. ...

journal_title：Radiology

authors： McDonald JB,Middleton PJ

更新日期：1976-02-01 00:00:00

abstract：:Aqueous myelographic contrast media are needed that are less expensive and better tolerated than metrizamide. This study compares two new, nonionic aqueous contrast media, ioglunide and iopamidol, with two previously developed contrast media, metrizamide and iocarmate. Myelography was performed with one of the contras...

journal_title：Radiology

authors： Haughton VM,Ho KC

更新日期：1980-08-01 00:00:00

abstract：:Radiographic findings previously thought pathognomonic for juvenile nasopharyngeal angiofibroma are anterior bowing of the posterior wall of the maxillary antrum on plain films or tomography, and a dense homogeneous blush on angiography. Two patients presented with nasopharyngeal masses which mimicked angiofibroma rad...

journal_title：Radiology

authors： Shaffer K,Haughton V,Farley G,Friedman J

更新日期：1978-05-01 00:00:00

abstract：PURPOSE:To retrospectively review imaging characteristics of indeterminate computed tomographic (CT) pulmonary angiograms for pulmonary embolism (PE) and patient outcome. MATERIALS AND METHODS:Investigational review board approval was obtained, informed consent was waived, and the study was HIPAA compliant. Retrospect...

journal_title：Radiology

authors： Jones SE,Wittram C

更新日期：2005-10-01 00:00:00

abstract：PURPOSE:To determine predictors of clot dissolution in patients undergoing catheter-directed urokinase thrombolysis for peripheral arterial occlusion (PAO). MATERIALS AND METHODS:The study included 103 patients with limb-threatening symptoms of embolism lasting 14 days or less and resulting from embolism (n = 20) or t...

journal_title：Radiology

authors： Ouriel K,Shortell CK,Azodo MV,Guiterrez OH,Marder VJ

更新日期：1994-11-01 00:00:00

abstract：:A 20-MHz intravascular ultrasound (US) transducer inside a percutaneously inserted catheter was used to evaluate inferior vena caval (IVC) filters for thrombi in vitro and in vivo. Six different IVC filters were studied with intravascular US in a saline-filled model. Each filter had a characteristic, recognizable US p...

journal_title：Radiology

authors： McCowan TC,Ferris EJ,Carver DK

更新日期：1990-12-01 00:00:00

abstract：:Purpose To demonstrate that anti-MG1 conjugated hybrid magnetic gold nanoparticles (HNPs) act as a catalyst during photothermal ablation (PTA) of colorectal liver metastases, and thus increase ablation zones. Materials and Methods All experiments were performed with approval of the institutional animal care and use co...

journal_title：Radiology

authors： White SB,Kim DH,Guo Y,Li W,Yang Y,Chen J,Gogineni VR,Larson AC

更新日期：2017-12-01 00:00:00

abstract：:Two patients with large arteriovenous malformations (AVM) were successfully treated by transcatheter selective arterial embolization with Gelfoam. An extensive lumbar retroperitoneal acquired AVM was markedly reduced, eliminating any clinical evidence of a persistent left-to-right shunt. A large localized congenital A...

journal_title：Radiology

authors： Stanley RJ,Cubillo E

更新日期：1975-06-01 00:00:00

abstract：PURPOSE:To determine whether contrast material-enhanced helical computed tomography (CT) of the thorax and upper abdomen changes the tumor stage and management compared with nonenhanced helical CT in patients with newly diagnosed lung cancer. MATERIALS AND METHODS:During 15 months, any patient in whom lung cancer was ...

journal_title：Radiology

authors： Patz EF Jr,Erasmus JJ,McAdams HP,Connolly JE,Marom EM,Goodman PC,Leder RA,Keogan MT,Herndon JE

更新日期：1999-07-01 00:00:00

abstract：PURPOSE:To validate three previously identified quantitative image features across multiparametric magnetic resonance (MR) images acquired with imagers made by two different manufacturers to differentiate prostate cancer (PC) from normal prostatic tissue and to assess cancer aggressiveness. MATERIALS AND METHODS:This ...

journal_title：Radiology

authors： Peng Y,Jiang Y,Antic T,Giger ML,Eggener SE,Oto A

更新日期：2014-05-01 00:00:00

abstract：:A clinical comparison study of scanning equalization radiography (SER) and conventional chest radiography was performed with the latest prototype SER system. Conventional chest radiography was performed at 120 kVp with Lanex regular screens (Eastman Kodak, Rochester, NY) and Kodak Ortho-G or Ortho-C film (Eastman Koda...

journal_title：Radiology

authors： Wandtke JC,Plewes DB

更新日期：1989-09-01 00:00:00

abstract：:The records of 71 patients with adenoid cystic carcinoma of the salivary glands were reviewed to determine the dose response relationships for this aggressive tumor. Local control after treatment was determined for all patients and analyzed with respect to extent of surgery and dose of radiation. Of 70 patients who we...

journal_title：Radiology

authors： Simpson JR,Thawley SE,Matsuba HM

更新日期：1984-05-01 00:00:00

abstract：PURPOSE:To retrospectively assess the use of the European Society of Urogenital Radiology (ESUR) Prostate Imaging Reporting and Data System (PI-RADS) criteria and 3-T multiparametric magnetic resonance (MR) imaging for detection of extraprostatic extension (EPE) of prostate cancer. MATERIALS AND METHODS:The institutio...

journal_title：Radiology

authors： Kayat Bittencourt L,Litjens G,Hulsbergen-van de Kaa CA,Turkbey B,Gasparetto EL,Barentsz JO

更新日期：2015-08-01 00:00:00