Abstract：
:Renal cell carcinoma has a propensity to extend as tumor thrombus into the renal vein and inferior vena cava (IVC). The preoperative assessment for the presence and extent of renal vein and IVC tumor thrombus is important for planning appropriate surgical resection. Imaging procedures [CT, ultrasound (US), MR, venacavography] were correlated with surgical findings and pathology in 431 consecutive patients who had a radical nephrectomy for renal cell carcinoma. Ninety-nine (23%) patients had tumor thrombus extending at least into the main renal vein. Of these, 29 had tumor thrombus extending within the IVC. Patients were classified into two groups based on the surgical extent of tumor thrombus. Group A patients had no tumor thrombus or had tumor thrombus only in the renal vein proximal to the site of surgical ligation. Group B patients had tumor thrombus that extended to or beyond the distal renal vein at the site of surgical ligation. Forty-one patients had Group B tumor thrombus. Group B tumor thrombus was not seen in a renal cell carcinoma that was smaller than 4.5 cm. The sensitivity of CT for detecting Group B tumor thrombus was 79% and that of US was 68%. However, a much higher percentage of US examinations were technically indeterminate. In the patients who had either MR or venacavography, both imaging procedures were 100% sensitive for detecting group B tumor thrombus. Magnetic resonance imaging and venacavography appear to be the most sensitive means of identifying tumor thrombus.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Kallman DA,King BF,Hattery RR,Charboneau JW,Ehman RL,Guthman DA,Blute MLdoi
10.1097/00004728-199203000-00012keywords:
subject
Has Abstractpub_date
1992-03-01 00:00:00pages
240-7issue
2eissn
0363-8715issn
1532-3145journal_volume
16pub_type
杂志文章abstract：OBJECTIVE:To evaluate the accuracy of dynamic laryngeal computed tomography (DLCT) for the detection of vocal cord mobility in larynx cancer. METHODS:Vocal cord mobility of 44 patients (36 men; age range, 49-81 years) with larynx cancer was examined; 13 patients were excluded (owing to poor image quality or bilateral ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0b013e31825b85ce
更新日期：2012-07-01 00:00:00
abstract：:Pick's disease is a rare cause of dementia. It often shows a characteristic pattern of atrophy affecting primarily the anterior portions of the frontal and temporal lobes. This pattern, as shown by computed tomography, may suggest the diagnosis. ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-197902000-00021
更新日期：1979-02-01 00:00:00
abstract：PURPOSE:The purpose of this study was to investigate the noninvasive quantification of coronary artery stenosis using cardiac software packages and vessel phantoms with known stenosis severity. MATERIALS AND METHODS:Four different sizes of vessel phantoms were filled with contrast agent and scanned on a 64-slice multi...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0b013e3181888363
更新日期：2009-07-01 00:00:00
abstract：:Serial computed tomography (CT) demonstrated complete resolution of severe periventricular hypodensity occurring in a child after receiving prophylaxis for acute lymphocytic leukemia. The resolution of this encephalopathy suggests that early changes of subacute necrotizing leukoencephalopathy are reversible and CT is ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-197809000-00023
更新日期：1978-09-01 00:00:00
abstract：:Glutaric aciduria type I is a rare disorder of organic acid metabolism caused by deficiency of glutaryl-CoA dehydrogenase. We report the cranial computed tomography (CT) and magnetic resonance (MR) imaging findings in a 5-month-old girl with this disorder who presented with an acute dystonic syndrome. CT findings demo...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-200401000-00016
更新日期：2004-01-01 00:00:00
abstract：:Subcutaneous fat provides excellent contrast for water density tissue. Five patients with subcutaneous metastases visualized on computed tomography (CT) scans are presented. In some cases, CT proved to be the optimal diagnostic modality for visualizing these lesions and documenting their response to therapy. ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-197807000-00005
更新日期：1978-07-01 00:00:00
abstract：:Fifteen patients with 21 subdural effusions were investigated both with transmission computer assisted tomography (CAT) and positron emission tomography (PET). The tracer in the emission studies was 68Ga-EDTA. Twelve lesions were visualized both with CAT and PET. Five lesions that were negative or doubtful on CAT were...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198012000-00002
更新日期：1980-12-01 00:00:00
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
doi：10.1097/RCT.0b013e3181d1dde8
更新日期：2010-05-01 00:00:00
abstract：:Two extradural arachnoid cysts of the thoracic spine were studied with magnetic resonance imaging, myelography, and CT. Magnetic resonance imaging correctly characterized the extradural location of the cysts as well as the cyst contents as CSF, thus establishing the diagnosis. Magnetic resonance is helpful in the asse...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198807000-00023
更新日期：1988-07-01 00:00:00
abstract：:A noninvasive technique for measuring blood flow by xenon-enhanced X-ray transmission CT has been developed and reported quite extensively in recent years. In this method nonradioactive xenon gas is inhaled, and the temporal changes in radiographic enhancement produced by the inhalation are measured by sequential CT. ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198412000-00015
更新日期：1984-12-01 00:00:00
abstract：:Coronary artery disease is currently the largest killer in the western world, and is estimated to become the leading cause of death worldwide by the year 2020. The question therefore is whether magnetic resonance imaging currently has a place in the already extremely well equipped armamentarium of cardiac testing. Alt...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章,评审
doi：10.1097/00004728-199911001-00019
更新日期：1999-11-01 00:00:00
abstract：:A 72-year-old woman with previously symptomatic internal carotid artery occlusion subsequently presented with an acute hemispheric deficit. The patient was initially diagnosed as having an ischemic infarction but eventually was shown to have a subacute subdural hematoma with delay in surgical evacuation and a major pe...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198909000-00029
更新日期：1989-09-01 00:00:00
abstract：:A case of superficial siderosis of the central nervous system secondary to bleeding from an ependymoma is presented. High-field magnetic resonance imaging showed marginal hypointensity of the cervical cord, medulla oblongata, pons, mesencephalon, anterior cerebellar and basal cerebral surfaces, and cranial nerves (II,...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198509000-00029
更新日期：1985-09-01 00:00:00
abstract：:The CT findings in hepatic involvement by Echinococcus granulosus are described. Pathognomonic signs of the hydatid nature of a cystic lesion are visualization of the cystic wall on plain CT, calcification of the cyst wall, daughter cysts, and membrane detachment. ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198410000-00005
更新日期：1984-10-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate the Macklin effect in patients with spontaneous pneumomediastinum by multidetector-row computed tomography (MDCT). METHODS:Chest computed tomography (CT) reports between July 2000 and January 2003 at our institution were retrospectively reviewed. Nine patients with s...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/01.rct.0000187416.07698.8d
更新日期：2006-01-01 00:00:00
abstract：:Mean lung density (MLD), as determined by a chest computed tomographic sector method, was evaluated in 12 patients with sarcoidosis and diffuse interstitial lung disease. The results demonstrate that MLD in sarcoidosis was -610.9 +/- 57.3 Hounsfield units (HU), significantly different (p less than 0.001) from a contro...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198306000-00003
更新日期：1983-06-01 00:00:00
abstract：:A 42-year-old man with end-stage renal disease developed acquired renal cystic disease. The left kidney underwent tumorous degeneration necessitating nephrectomy. Eight months later acute hemorrhagic renal cyst rupture culminated in right nephrectomy. ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198709000-00034
更新日期：1987-09-01 00:00:00
abstract：:Proper therapeutic management of acute spinal trauma depends considerably on the assessment of the condition of the underlying spinal cord and the relative stability of the surrounding bony architecture. A series of 14 patients who were examined by magnetic resonance (MR) imaging following spinal trauma is presented. ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198705000-00008
更新日期：1987-05-01 00:00:00
abstract：:With computer reformatting techniques, it is possible to project any lesion into its proper position with respect to the reformatted midsagittal computed tomography (CT) plane, the reformatted biparietal CT plane, or any other useful reference plane. The calvarial contour depicted on the reformatted midsagittal CT ima...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198010000-00024
更新日期：1980-10-01 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
pub_type： 杂志文章,多中心研究
doi：10.1097/RCT.0000000000000514
更新日期：2017-03-01 00:00:00
abstract：:Computed tomography of the liver was performed on two patients with subacute hepatitis. The CT findings included the presence of multiple regenerative nodules in the atrophied liver, shown by decreased CT attenuation. Complications due to hepatitis, such as massive ascites and splenomegaly, were also observed. The CT ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198907000-00016
更新日期：1989-07-01 00:00:00
abstract：:Idiopathic retroperitoneal fibrosis (IRF) is a rare condition of unknown etiology. An unusual case of IRF exclusively located at the peripancreatic area without extension below the lower renal poles is reported. ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198611000-00038
更新日期：1986-11-01 00:00:00
abstract：:Vertebral artery tortuosity and loop formation are rare causes of cervical radiculopathy. The criterion standard for the detection of vertebral artery loop formation is digital subtraction angiography. Computed tomography (CT) and magnetic resonance imaging provide good accuracy in the evaluation of vertebral arteries...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/01.rct.0000146481.56700.da
更新日期：2005-01-01 00:00:00
abstract：OBJECTIVE:This cross-sectional study assessed the prognostic implications of computed tomography (CT) coronary artery calcification (CAC), independent of emphysema, in patients with chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS:Coronary artery calcification and emphysema were assessed on noncontr...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0000000000000119
更新日期：2014-09-01 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
pub_type： 杂志文章
doi：10.1097/01.rct.0000237819.64419.d2
更新日期：2007-05-01 00:00:00
abstract：OBJECTIVE:The prevalence and features of the thyroid pyramidal lobe (TPL) on computed tomography (CT) have been reported, but no ultrasound (US) study has been found. The purposes of the current study were to assess the sonographic prevalence and features of TPLs and to compare the US and CT parameters of TPLs. METHOD...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0000000000000054
更新日期：2014-05-01 00:00:00
abstract：:From a sequence of computed tomograms of two-dimensional transverse slices of a body one can build up a three-dimensional array of numbers containing spatial rather than cross-sectional information. We have developed computer methods to display a slice at arbitrary orientation through the three-dimensional object. The...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-197701000-00018
更新日期：1977-01-01 00:00:00
abstract：OBJECTIVE:To prospectively investigate the feasibility of an 80-kilovolt (peak) (kVp) protocol in computed tomographic venography for varicose veins of the lower extremities by comparison with conventional 120-kVp protocol. METHODS:Attenuation values and signal-to-noise ratio of iodine contrast medium (CM) were determ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0b013e3182621ea9
更新日期：2012-09-01 00:00:00
abstract：:This article reviews the computed tomography imaging features of a variety of gastric tumors containing fatty tissue. Lipoma, angiolipoma, liposarcoma, and teratoma are described. Differential diagnosis includes primary and reactive lipomatosis, carcinoma engulfing the perivisceral fat thus mimicking differentiated li...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章,评审
doi：10.1097/00004728-200011000-00006
更新日期：2000-11-01 00:00:00
abstract：:We present a unique case of aggressive osteoblastoma arising from thyroid cartilage. A 52-year-old man presented with a 10 month history of neck discomfort but without frank pain. CT and MR examinations disclosed a well defined mass arising from the thyroid cartilage. This lesion had areas of coarse calcifications and...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-199601000-00021
更新日期：1996-01-01 00:00:00
