Case Report. CT and US features of renal matrix stones with calcified center.


:We report imaging findings of renal matrix stones in a patient with congenital ureteropelvic junction obstruction associated with urinary tract infection. The stones were composed of a calcified center and a non-calcified peripheral matrix that was slightly high attenuated on CT and nonshadowing on US.


J Comput Assist Tomogr


Kim SH,Lee SE,Park IA




Has Abstract


1996-05-01 00:00:00












  • Computed Tomography Assessment of Ablation Zone Enhancement in Patients With Early-Stage Lung Cancer After Stereotactic Ablative Radiotherapy.

    abstract:INTRODUCTION:Stereotactic ablative radiotherapy (SABR) offers a curative treatment for lung cancer in patients who are marginal surgical candidates. However, unlike traditional surgery the lung cancer remains in place after treatment. Thus, imaging follow-up for evaluation of recurrence is of paramount importance. MAT...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Moore W,Chaya Y,Chaudhry A,Depasquale B,Glass S,Lee S,Shin J,Mikhail G,Bhattacharji P,Kim B,Bilfinger T

    更新日期:2015-09-01 00:00:00

  • Osteonecrosis of the patella: diagnostic imaging perspective.

    abstract::Disability from knee dysfunction has important implications on a patient's performance of simple day-to-day tasks, work-related duties, and leisure activities, including sports. Diagnostic imaging is of fundamental importance in the clinical evaluation of the patient with knee pain. The use of magnetic resonance imagi...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章,评审


    authors: Theodorou SJ,Theodorou DJ,Resnick D

    更新日期:2005-01-01 00:00:00

  • Combined magnetic resonance tractography and functional magnetic resonance imaging in evaluation of brain tumors involving the motor system.

    abstract::The goal of neuro-oncologic surgery is to maximize tumor resection while preserving vital brain functions. Identification of the relation between the tumor and adjacent functional cortical areas as well as efferent subcortical white matter tracts is important for preservation of function. Combined diffusion tensor ima...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Parmar H,Sitoh YY,Yeo TT

    更新日期:2004-07-01 00:00:00

  • CT diagnosis of cystic hygroma of the neck.

    abstract::Cystic hygromas of the neck can simulate other benign lesions and occasionally extend into the mediastinum. Using computed tomography, we were able to confirm the suspected diagnosis, exclude other diagnostic considerations, and clearly demonstrate absence of mediastinal extension. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Silverman PM,Korobkin M,Moore AV

    更新日期:1983-06-01 00:00:00

  • Collagen vascular disease-related lung disease: high-resolution computed tomography findings based on the pathologic classification.

    abstract::Collagen vascular disease (CVD) can cause a variety of lung abnormalities, including usual interstitial pneumonia, nonspecific interstitial pneumonia, organizing pneumonia, diffuse alveolar damage, lymphoid interstitial pneumonia, bronchiectasis, constrictive bronchiolitis, follicular bronchiolitis, alveolar hemorrhag...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Tanaka N,Newell JD,Brown KK,Cool CD,Lynch DA

    更新日期:2004-05-01 00:00:00

  • Multidetector computed tomographic features of oncocytic papillary renal cell carcinoma, a new subtype.

    abstract::The following report describes the computed tomographic (CT) features of oncocytic papillary renal cell carcinoma (OPRCC), a new subtype. An experienced genitourinary pathologist identified each tumor as type 1 or 2, oncocytic, or other. Two radiologists independently reviewed CT images and assessed maximal tumor diam...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Tse G,Chow DS,Hsu M,Margolis D,Raman SS

    更新日期:2010-05-01 00:00:00

  • "Fogging effect" in MR of cerebral infarct.

    abstract::In a case of cerebral infarction the lesions were isointense to slightly hyperintense in the T2-weighted MR images obtained approximately 2 weeks after the onset. Earlier (1 week after onset), they had been markedly hyperintense. The probably mechanisms behind this phenomenon, referred to as "MR fogging" are discussed...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Asato R,Okumura R,Konishi J

    更新日期:1991-01-01 00:00:00

  • Sensitivity of the Mount Fuji Sign After Evacuation of Chronic Subdural Hematoma in Nonagenarians.

    abstract:BACKGROUND:The Mount Fuji sign (MFS) is a radiological sign on computed tomographic scans depicting air between the frontal lobes. Air in this location indicates tension pneumocephalus (TP), considered a neurosurgical emergency.We evaluate the correlation between the MFS and perioperative mortality attributed to TP in ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Moscovici S,Halevy D,Mizrahi CJ,Goldberg SN,Brown DW,Ben-David E

    更新日期:2019-09-01 00:00:00

  • Invasive carcinomas derived from intraductal papillary mucinous neoplasms of the pancreas: a long-term follow-up assessment with CT imaging.

    abstract:OBJECTIVE:To describe computed tomography (CT) findings of invasive carcinoma derived from intraductal papillary mucinous neoplasms (IPMNs) of the pancreas during long-term follow-up. METHODS:Follow-up CT findings of 5 patients with IPMNs progressing to invasive carcinomas were respectively reviewed for 12 to 63 month...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Yamada Y,Mori H,Matsumoto S,Kamei N,Hongo N

    更新日期:2006-11-01 00:00:00

  • Pedunculated bronchogenic cyst mimicking pleural lesion.

    abstract::We report a rare case of a bronchogenic cyst presenting as a pleural nodule. CT and MRI demonstrated a well circumscribed, homogeneous lesion located on the pleural surface apart from the mediastinum. It was proven to be a bronchogenic cyst localized between the parietal and visceral pleurae and connected with the med...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Yoshioka N,Minami M,Inoue Y,Kawauchi N,Nakajima J,Oka T,Yoshikawa K,Ohtomo K

    更新日期:2000-07-01 00:00:00

  • Application and Indication of Carcinoembryonic Antigen Triggered 18F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scanning in the Detection of Relapse of Colorectal Cancer Patients After Curative Therapy.

    abstract:OBJECTIVE:This study aimed to explore the characteristics of patients with colorectal cancer (CRC) following curative therapy that may benefit from fluorine-18-2-uoro-2-deoxy-D-glucose positron emission tomography/computed tomography (F-FDG PET/CT) scanning, evaluate the application of carcinoembryonic antigen (CEA)-tr...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Yu X,Zhu L,Dai D,Song X,Chen W,Zhu Y,Li X,Xu W

    更新日期:2017-09-01 00:00:00

  • Sampling properties of stationary and half-rotation rings in positron emission tomography.

    abstract::The aim in positron emission tomography is to provide quantitative information about the uptake, localization, and turnover of labeled molecules in the human body. Instruments designed for this purpose are based on the coincidence detection of the emitted annihilation photons. In this paper, we examine those instrumen...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Kouris K,Garnett ES,Herman GT

    更新日期:1981-10-01 00:00:00

  • Comparison of 320-row computed tomography coronary angiography with conventional angiography for the assessment of coronary artery disease with different atherosclerotic plaque characteristics.

    abstract:OBJECTIVE:The objective of this study was to compare the accuracy of 320-row computed tomography angiography (CTA) with conventional coronary angiography. METHODS:Two hundred seventy-four patients with coronary artery disease who received both invasive coronary angiography and 320-row CTA were included. Stenosis of 50...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Yang QH,Chen YJ,Liu QQ,Dong M,Wen L,Song X,Lv YJ,Gong YZ,Li XQ

    更新日期:2012-11-01 00:00:00

  • MR depiction of zonal anatomy of the prostate at 1.5 T.

    abstract::Previous reports of magnetic resonance imaging of the prostate have described a homogeneous appearance to the normal prostate gland. The T2-weighted images of the normal prostate obtained at higher field strength (1.5 T) reveal an inhomogeneous appearance of the normal gland, with apparent differentiation of normal pr...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Sommer FG,McNeal JE,Carrol CL

    更新日期:1986-11-01 00:00:00

  • CT of infected bladder diverticulum.

    abstract::A case in which pus within a bladder diverticulum simulated a deep pelvic abscess is presented. This pitfall in CT diagnosis should be considered in patients with bladder outlet obstruction with symptoms of infection. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Patel U,Furie DM,Lee WJ

    更新日期:1991-05-01 00:00:00

  • A probabilistic ribbon model for shape analysis of the cerebral sulci: application to the central sulcus.

    abstract:PURPOSE:An approach for quantifying the shapes of the cerebral sulci is presented, utilizing a probabilistic geometric model, and it is applied to the central sulcus. METHOD:The geometric structure of the central sulcus is determined from a set of outlines on cross-sectional images and is used by a procedure that auto...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Manceaux-Demiau A,Bryan RN,Davatzikos C

    更新日期:1998-11-01 00:00:00

  • Follow-up of coronary artery bypass graft patency: diagnostic efficiency of high-pitch dual-source 256-slice MDCT findings.

    abstract:OBJECTIVES:Our aim was to evaluate the diagnostic accuracy of 256-slice, high-pitch mode multidetector computed tomography (MDCT) for coronary artery bypass graft (CABG) patency. METHODS:Eighty-eight patients underwent 256-slice MDCT angiography to evaluate their graft patency after CABG surgery using a prospectively ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Yuceler Z,Kantarci M,Yuce I,Kizrak Y,Bayraktutan U,Ogul H,Kiris A,Celik O,Pirimoglu B,Genc B,Gundogdu F

    更新日期:2014-01-01 00:00:00

  • Stereotactic retrobulbar anesthesia using CT.

    abstract::A simple technique using stereotactic needle placement for retrobulbar anesthesia is reported. The method utilizes a CT-guided stereotactic device that permits precise intraconal injection of local anesthetics; in addition, the risk of injury to muscles, vessels, eyeglobe, or optic nerve is substantially reduced. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Vogl G,Schimek F,Ozdoba C,Steuhl PK,Voigt K,Nüsslin F

    更新日期:1990-09-01 00:00:00

  • Acinar cell carcinoma of the pancreas: clinical and computed tomography manifestations.

    abstract:PURPOSE:Acinar cell carcinoma (ACC) is a subtype of pancreatic neoplasm sufficiently rare that its imaging has not been fully analyzed. The purpose of this article is to present the computed tomography (CT) appearance of ACC of the pancreas. METHODS:Clinical data and CT studies of 10 patients (7 male and 3 female) wit...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Chiou YY,Chiang JH,Hwang JI,Yen CH,Tsay SH,Chang CY

    更新日期:2004-03-01 00:00:00

  • MR imaging of lumbar juxtaarticular cysts.

    abstract::Three surgically proven cases of lumbar extradural juxtaarticular cysts were examined by magnetic resonance (MR) imaging. The highly variable MR signal patterns are presented. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Awwad EE,Martin DS,Smith KR Jr,Bucholz RD

    更新日期:1990-05-01 00:00:00

  • Direct longitudinal computed tomography of the forearm.

    abstract::A method is outlined for obtaining direct longitudinal computed tomograms of the forearm using a conventional total body scanner. A case is described in which longitudinal scanning helped define a soft tissue tumor of the forearm and thereby assisted in surgical planning. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Nesbit D,Levine E,Neff JR

    更新日期:1981-02-01 00:00:00

  • MR imaging in assessment of cardiac transplant rejection in humans.

    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

    pub_type: 杂志文章


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

    更新日期:1990-01-01 00:00:00

  • Serial nuclear magnetic resonance (NMR) imaging in patients with cerebral infarction.

    abstract::Seven patients with supratentorial infarction were studied by means of serial nuclear magnetic resonance imaging using saturation recovery (SR) and proton density (PD) sequences. The earliest changes were visible in the more sensitive T1 dependent images (SR) and may reflect the cytotoxic component of ischemic brain e...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Sipponen JT,Kaste M,Ketonen L,Sepponen RE,Katevuo K,Sivula A

    更新日期:1983-08-01 00:00:00

  • Improved Computed Tomography Contrast Injection Rates Through Implantable Chest Power Ports.

    abstract:OBJECTIVE:The aim of this study was to optimize chest port contrast injections using stepwise improvements. METHODS:Ex vivo injections were tested. Two hundred scans using power port injections were then evaluated. RESULTS:The highest flow rate was achieved using a 19G access needle, larger diameter tubing, and warme...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Fielding JC,Wagner-Bartak NA,Javadi S,Morani AC,Ganeshan D,Ibarra-Rovira JJ,Liu X,Jensen CT

    更新日期:2020-11-01 00:00:00

  • MR imaging of pontine and extrapontine myelinolysis.

    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

    pub_type: 杂志文章


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

    更新日期:1988-05-01 00:00:00

  • Diffuse cavernous hemangioma of the rectosigmoid colon: imaging findings.

    abstract::Diffuse cavernous hemangioma of the rectosigmoid colon (DCHR) is an uncommon disease that affects mainly young adults. As the main symptom is non-specific chronic rectal bleeding, the clinical diagnosis is difficult and often delayed. In this essay, we illustrate the imaging features of DCHR, including plain radiograp...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Djouhri H,Arrivé L,Bouras T,Martin B,Monnier-Cholley L,Tubiana JM

    更新日期:1998-11-01 00:00:00

  • Computed tomographic distinction of perirenal liposarcoma from exophytic angiomyolipoma: a feature analysis study.

    abstract:PURPOSE:To identify computed tomographic (CT) findings that distinguish perirenal liposarcomas from exophytic angiomyolipomas. MATERIALS AND METHODS:We identified CT scans of 20 patients (13 women and 7 men; mean age, 63 years) with either perirenal liposarcoma (n = 11) proven at histopathology or large exophytic angi...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Ellingson JJ,Coakley FV,Joe BN,Qayyum A,Westphalen AC,Yeh BM

    更新日期:2008-07-01 00:00:00

  • Oxygen-assisted breath-holding in computed tomography.

    abstract::To achieve prolonged breath-holding, oxygen was administered just before dynamic CT and high resolution lung CT. Oxygen administration has proved to be a supportive means to improve the quality of CT studies. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Sadatoh N,Hatabu H,Takahashi M,Imanaka K,Sano A

    更新日期:1987-07-01 00:00:00

  • Obstructive jaundice due to multiple myeloma of the pancreatic head: CT evaluation.

    abstract::Extraskeletal spread of multiple myeloma is common and may cause jaundice due to hepatic infiltration. Less commonly, involvement of the pancreas may cause obstructive jaundice. We present a patient with multiple myeloma who became jaundiced. Computed tomography revealed an obstructing pancreatic mass. Aspiration biop...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Mitchell DG,Hill MC

    更新日期:1985-11-01 00:00:00

  • Accurate determination of metabolic rates from dynamic positron emission tomography data with very-low temporal resolution.

    abstract:PURPOSE:The graphical approach is widely used for the pixelwise determination of local metabolic rate of glucose from dynamic positron emission tomography (PET) data. In its conventional implementation, measured integrals over time frames are used to approximate instantaneous tracer concentrations at midframe times ("m...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Buchert R,van den Hoff J,Mester J

    更新日期:2003-07-01 00:00:00