Helical CT of the liver: evaluation of injection flow rate, mode, and scan delay with a reduced-volume contrast medium bolus.

abstract：:A case of external jugular venous thrombosis secondary to misplacement of central venous catheter is presented. The CT findings included enlargement of the external jugular vein, central thrombosis, and vessel wall enhancement. Computed tomography is an excellent noninvasive modality for the evaluation of suspected ve...

journal_title：Journal of computer assisted tomography

authors： Fishman EK,Gayler BW,Magid D,Siegelman SS

更新日期：1985-05-01 00:00:00

abstract：:Calcifications of renal masses are common. They are usually dense, partial, small, punctate, and linear opacities. Diffuse calcification is an extremely rare feature of renal masses. Generally, calcified renal cell carcinomas are hypovascular, with calcifications in the interstitium, and they also contain fibrotic cap...

journal_title：Journal of computer assisted tomography

authors： Onitsuka H,Murakami J,Naito S,Souda R,Shioyama Y,Honda H,Araki A,Torii Y,Masuda K

更新日期：1992-07-01 00:00:00

abstract：:In a patient who presented with pelvic pain and changed bowel habits, barium enema and sigmoidoscopic examinations demonstrated a nonspecific asymmetric narrowing of the colon at the rectosigmoid junction with normal mucosal appearance. Computed tomography revealed the etiology to be retroperitoneal fibrosis with pelv...

journal_title：Journal of computer assisted tomography

authors： Hulnick DH,Chatson GP,Megibow AJ,Bosniak MA,Ruoff M

更新日期：1988-01-01 00:00:00

abstract：:A case of leiomyosarcoma of the kidney is reported here with its CT and MRI manifestations correlated to the pathologic findings. The leiomyosarcoma appeared as a well-defined multinodular mass of varying density and signal intensity on CT and MRI, respectively. The low signal-intensity regions on T2-weighted MRI exhi...

journal_title：Journal of computer assisted tomography

authors： Ochiai K,Onitsuka H,Honda H,Kawamoto K,Uozumi J,Kumazawa J,Masuda K

更新日期：1993-07-01 00:00:00

abstract：OBJECTIVE:To evaluate soft tissue contrast and image quality of a respiratory-triggered echo-planar imaging based diffusion-weighted sequence (EPI-DWI) with different b values for magnetic resonance imaging (MRI) of the liver. METHODS:Forty patients were examined. Quantitative and qualitative evaluation of contrast wa...

journal_title：Journal of computer assisted tomography

authors： Asbach P,Hein PA,Stemmer A,Wagner M,Huppertz A,Hamm B,Taupitz M,Klessen C

更新日期：2008-05-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to investigate whether the criterion "maximum depth of intraluminal appendiceal fluid greater than 2.6 mm" ("DEPTH >2.6 mm"), with the use of 64-detector row computed tomography, is useful to diagnose appendicitis. METHODS:We retrospectively evaluated 0.68-mm-thick images of 2...

journal_title：Journal of computer assisted tomography

authors： Moteki T,Ohya N,Horikoshi H

更新日期：2011-11-01 00:00:00

abstract：:Renal imaging remains a critical tool to differentiate and manage benign from malignant renal disorders. Conventional multidetector computed tomography (CT) and magnetic resonance (MR) provide great anatomical details, although lack functional information and specificity. The lack of resolution undermines the function...

journal_title：Journal of computer assisted tomography

authors： Ganeshan D,Notohamiprodjo M,Nikolaidis P,Sanyal R,Bhosale P

更新日期：2013-11-01 00:00:00

abstract：OBJECTIVE:To evaluate the prevalence of azygos arch valves and assess azygos valve insufficiency at computed tomography angiography (CTA) of the chest or body with high rate contrast material injection. METHODS:Three hundred twenty-one CTAs using high intravenous injection rates (3-5 mL/second) of 300 mgI/mL contrast ...

journal_title：Journal of computer assisted tomography

authors： Steinke K,Moghaddam A

更新日期：2009-09-01 00:00:00

abstract：:Neurofibromatosis or von Recklinghausen disease usually is a readily diagnosed entity, characterized by typical cutaneous lesions and a strong family history. In a variant of the usual disease, peripheral neurofibromatosis, these stigmata may be absent and accurate diagnosis may be elusive. We present a patient withou...

journal_title：Journal of computer assisted tomography

authors： Francis IR,Glazer GM

更新日期：1983-04-01 00:00:00

abstract：:Six patients with solid vestibular schwannomas were studied by diffusion magnetic resonance imaging to assess if this modality adds new information for these tumors, because there is no previous report in the relevant literature. The sizes of the tumors ranged from 2.2 to 4.7 cm with respect to their largest diameters...

journal_title：Journal of computer assisted tomography

authors： Sener RN

更新日期：2003-03-01 00:00:00

abstract：PURPOSE:The purpose of this study was to compare quantitative and qualitative measures of aortic, cardiac, and respiratory motion artifact between high-pitch dual-source (DS) and single-source (SS) computed tomography pulmonary angiography (CTPA) protocols. METHODS:This institutional review board-approved, Health Insu...

journal_title：Journal of computer assisted tomography

authors： Bunch PM,Fulwadhva UP,Wortman JR,Primak AN,Madan R,Steigner ML,Sodickson AD

更新日期：2018-07-01 00:00:00

abstract：:Two cases of pontine and extrapontine myelinolysis following electrolyte derangements are presented. One case showed only extrapontine myelinolytic lesions on magnetic resonance (MR) imaging, although both pontine and extrapontine myelinolysis were confirmed at postmortem. Another case made full recovery clinically wi...

journal_title：Journal of computer assisted tomography

authors： Moriwaka F,Tashiro K,Maruo Y,Nomura M,Hamada K,Kashiwaba T

更新日期：1988-05-01 00:00:00

abstract：:The computed tomographic (CT) characteristics of intraabdominal tuberculosis are not specific. A recent article from South Africa proposed a set of criteria that included high density ascites and mesenteric involvement, consisting of thickening and adenopathy, as possible criteria for the diagnosis of tuberculous peri...

journal_title：Journal of computer assisted tomography

authors： Dahlene DH Jr,Stanley RJ,Koehler RE,Shin MS,Tishler JM

更新日期：1984-06-01 00:00:00

abstract：:Uterine cirsoid aneurysm is uncommon. It is important to make a diagnosis of this disease preoperatively, because repeated curettages may induce life-threatening massive genital bleeding. We present a case of a 51-year-old woman with uterine cirsoid aneurysm in whom MRI and MRA were very useful for the preoperative di...

journal_title：Journal of computer assisted tomography

authors： Joja I,Asakawa M,Motoyama K,Mitsumori A,Nakagawa T,Kanazawa S,Kuroda M,Togami I,Hiraki Y,Kudo T

更新日期：1996-03-01 00:00:00

abstract：PURPOSE:The objectives of the study were to analyze the tumor shrinkage pattern on magnetic resonance imaging (MRI) after neoadjuvant chemotherapy and to evaluate whether there is any difference in shrinkage pattern between pathological responder and nonresponder groups. In addition, we wanted to compare tumor diameter...

journal_title：Journal of computer assisted tomography

authors： Kim TH,Kang DK,Yim H,Jung YS,Kim KS,Kang SY

更新日期：2012-03-01 00:00:00

abstract：:The magnetic resonance imaging (MRI) findings in 2 cases of ovarian cancer arising in an endometrioma are presented. In both cases, the cancer was evident as an enhancing mass within a blood-filled adnexal cyst. The MRI findings of an enhancing mass within a blood-filled adnexal cyst should prompt consideration of ova...

journal_title：Journal of computer assisted tomography

authors： Wu TT,Coakley FV,Qayyum A,Yeh BM,Joe BN,Chen LM

更新日期：2004-11-01 00:00:00

abstract：OBJECTIVES:The aim of this study is to evaluate the effect of heart rate on exposure window, best phase, and image quality for stress computed tomography perfusion (CTP) in the CORE320 study. METHODS:The CTP data sets were analyzed to determine the best phase for perfusion analysis. A predefined exposure window coveri...

journal_title：Journal of computer assisted tomography

authors： Steveson C,Schuijf JD,Vavere AL,Mather RT,Caton T,Mehra V,Betoko A,Cox C,Lima JA,George RT

更新日期：2017-03-01 00:00:00

abstract：PURPOSE:The purpose of this work was to investigate the ultrasound (US) and CT features of dropped gallstones mimicking peritoneal seeding in patients after laparoscopic cholecystectomy (LCC). METHOD:We describe the US and CT features of dropped gallstones mimicking peritoneal seeding in eight patients who underwent L...

journal_title：Journal of computer assisted tomography

authors： Atri M,Bonifacio A,Ryan M,Pilleul FL,Hanbidge A,Clark J,Murphy J

更新日期：2002-11-01 00:00:00

abstract：:The magnetic resonance imaging characteristics of transient left ventricular apical ballooning are described in this report, and the features that distinguish it from acute myocardial infarction are emphasized. ...

journal_title：Journal of computer assisted tomography

authors： Fritz J,Wittstein IS,Lima JA,Bluemke DA

更新日期：2005-01-01 00:00:00

abstract：OBJECTIVE:To test the hypothesis that a calibration phantom would improve interpatient and interscan variability in coronary artery calcium (CAC) studies. METHODS:We scanned 144 patients twice with or without the calibration phantom and then scanned 93 patients with a single calcific lesion twice and, finally, scanned...

journal_title：Journal of computer assisted tomography

authors： Budoff MJ,Mao S,Lu B,Takasu J,Child J,Carson S,Fisher H

更新日期：2002-11-01 00:00:00

abstract：:The aim of the study was to explore the efficacy of iodine quantification with dual-energy computed tomography (DECT) in differentiating thymoma, thymic carcinoma, and thymic lymphoma. MATERIALS AND METHODS:Fifty-seven patients with pathologically confirmed low-risk thymoma (n = 16), high-risk thymoma (n = 15), thymi...

journal_title：Journal of computer assisted tomography

authors： Yan WQ,Xin YK,Jing Y,Li GF,Wang SM,Rong WC,Xiao G,Lei XB,Li B,Hu YC,Cui GB

更新日期：2018-11-01 00:00:00

abstract：PURPOSE:Pseudolesions are sometimes seen around the falciform ligament, around the gallbladder, or at the posterior edge of the medical segment on CT during arterial portography. The purpose of this study was to investigate the influence of liver cirrhosis on these pseudolesions. METHOD:The basis of this study was 33 ...

journal_title：Journal of computer assisted tomography

authors： Irie T,Tsushima Y,Terahata S,Hatsuse K,Kusano S

更新日期：1996-11-01 00:00:00

abstract：OBJECTIVE:To compare the quality of multidetector-row computed tomographic angiography in patients with and without aortic aneurysms by 3 different amounts of contrast media (CM). METHODS:A total of 115 patients with aortic aneurysms were divided into 3 groups: group A, 100 mL CM; group B, 75 mL CM with 20 mL saline f...

journal_title：Journal of computer assisted tomography

authors： Kubo S,Tadamura E,Yamamuro M,Kanao S,Kataoka ML,Takahashi M,Kimura T,Kita T,Komeda M,Togashi K

更新日期：2007-05-01 00:00:00

abstract：OBJECTIVE:The purpose of this study is to evaluate predictive factors for discriminating benign from malignant intraductal mucin-producing neoplasm (IPMN) of the pancreas on multidetector row computed tomography (MDCT). MATERIALS AND METHODS:Fifty-three patients with IPMN underwent MDCT, and the imaging and pathologic...

journal_title：Journal of computer assisted tomography

authors： Takeshita K,Kutomi K,Takada K,Haruyama T,Fukushima J,Aida R,Takada T,Furui S

更新日期：2008-03-01 00:00:00

abstract：PURPOSE:The purpose of this work was to define the characteristic MR features of colorectal mucinous carcinomas and to correlate the mucin pool with the signal intensity of this tumor. METHOD:MRI of 12 cases of pathologically proven colorectal carcinoma containing mucin was evaluated. We analyzed the signal intensity ...

journal_title：Journal of computer assisted tomography

authors： Kim MJ,Huh YM,Park YN,Kim NK,Kim DJ,Chung JJ,Kim WH,Yoo HS,Lee JT

更新日期：1999-03-01 00:00:00

abstract：PURPOSE:The purpose of our study was to test dynamic helical CT (hCT) in the evaluation of breast tumors. METHOD:Thirty-six patients with 39 suspected lesions underwent breast hCT before and 1, 3, and 8 min after intravenous contrast medium administration. A marked enhancement (> or = 100%) at 1 or 3 min without incre...

journal_title：Journal of computer assisted tomography

authors： Sardanelli F,Calabrese M,Zandrino F,Melani E,Parodi R,Imperiale A,Massa T,Parodi G,Canavese G

更新日期：1998-05-01 00:00:00

abstract：PURPOSE:The purpose of this work was to determine the accuracy of predicting arterial enhancement from peripheral versus central venous test bolus injections at CT angiography (CTA). METHOD:In 40 patients with abdominal aortic aneurysms, aortoiliac enhancement profiles were predicted by mathematical deconvolution of t...

journal_title：Journal of computer assisted tomography

authors： Hittmair K,Fleischmann D

更新日期：2001-03-01 00:00:00

abstract：:To evaluate the efficacy of myocardial T2 values in the assessment of allograft rejection, we performed magnetic resonance (MR) imaging at 0.5 T serially in seven cardiac transplant recipients and singly in seven normal volunteers. Cardiac-gated multi-echo spin echo images were obtained; T2 values were estimated by a ...

journal_title：Journal of computer assisted tomography

authors： Doornbos J,Verwey H,Essed CE,Balk AH,de Roos A

更新日期：1990-01-01 00:00:00

abstract：:We retrospectively evaluated 10 patients with pathologically proven fibrolamellar hepatocellular carcinoma (FLHCC) to assess the utility of CT (n = 9), ultrasound (n = 10), angiography (n = 9), and MR (n = 3). The tumors were solitary in 6 of 10 patients, well delineated in 7 of 10, and hypervascular in 8 of 10. With ...

journal_title：Journal of computer assisted tomography

authors： Soyer P,Roche A,Levesque M,Legmann P

更新日期：1991-07-01 00:00:00

abstract：:Vasculitis of the testis, although common pathologically, has been difficult to diagnose clinically and to detect noninvasively. This report describes the added benefit of MR imaging in directing clinical management in a patient where the first manifestation of vasculitis was scrotal pain and swelling. This subject wa...

journal_title：Journal of computer assisted tomography

authors： Hayward I,Trambert MA,Mattrey RF,Saltzstein SL,Demby AM

更新日期：1991-05-01 00:00:00