Abstract:
OBJECTIVE:The purpose of this study was to investigate the early manifestation of hypervascular hepatocellular carcinomas by means of evaluating the "nodule-in-nodule" hepatic lesions depicted on dynamic computed tomography. METHODS:For 26 lesions with hypervascular foci in nonhypervascular nodules in 23 patients with cirrhotic liver, the size of the lesions was measured during the initial and follow-up studies in patients who had a comparable follow-up computed tomography or magnetic resonance imaging studies (ranging from 46 to 399 days). RESULTS:The mean volume doubling time of the total 26 inner nodules was 36 days, which was significantly shorter than the doubling time for the outer nodules (mean, 257 days for 18 enlarged lesions) (P < 0.001). CONCLUSIONS:Because of the rapid progression of the inner hypervascular hepatocellular carcinomas, recognition of nodule-in-nodule lesions is essential for considering short-term follow-up or immediate treatment when managing patients with cirrhosis.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Yu JS,Chung JJ,Kim JH,Kim KWdoi
10.1097/RCT.0b013e3181670fa3subject
Has Abstractpub_date
2009-01-01 00:00:00pages
131-5issue
1eissn
0363-8715issn
1532-3145pii
00004728-200901000-00024journal_volume
33pub_type
杂志文章abstract::Several classification systems for neuroendocrine tumors (NETs) exist, which use variable terminology and criteria for grading and staging. This variability in terminology can cause confusion and difficulty in recognizing which tumors are, in fact, members of this heterogeneous group of malignancies. The largest group...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/RCT.0000000000000140
更新日期:2014-11-01 00:00:00
abstract:OBJECTIVE:Evaluation of left ventricular function using electrocardiogram (ECG)-gated multidetector row CT (MDCT) by using 3 different volumetric assessment methods in comparison to assessment of the left ventricular function by invasive ventriculography. METHODS:Thirty patients with suspected or known coronary artery...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000160426.41014.b1
更新日期:2005-05-01 00:00:00
abstract::Takayasu arteritis is a chronic inflammatory disease of unknown origin. The disease is characterized by transmural inflammation and fibrosis; the arterial lesions affect mainly the aorta and great vessels and sometimes involve the pulmonary arteries and visceral vessels. Despite efforts to create criteria for clinical...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract::This is the third of a series of 4 white papers that represent Expert Consensus Documents developed by the Society of Computed Body Tomography and Magnetic Resonance through its Task Force on dual-energy computed tomography. This paper, part 3, describes computed tomography angiography and thoracic, cardiac, vascular,...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000538
更新日期:2017-01-01 00:00:00
abstract:OBJECTIVE:Formation mechanisms and treatment of the urinary stones are different, depending on their chemical structure. Therefore, determining the stone type plays a key role in planning treatment and preventive measures. Computed tomography (CT), with the use of dual-energy technology in recent years, has made it pos...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000831
更新日期:2019-03-01 00:00:00
abstract::We report the serial MR and PET/SPECT findings in a 2 1/2-year-old boy presenting with Rasmussen syndrome and highlight the close qualitative correlations between the results of the imaging modality and the functional isotopic techniques. The latter demonstrated a wider field of extension of the disease process. Routi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199711000-00010
更新日期:1997-11-01 00:00:00
abstract::Acute infarction of an appendix epiploica resulted in an inflammatory process involving the caudal aspect of the transverse colon and the adjacent greater omentum. Computed tomography demonstrated prominent linear soft tissue densities, an increase in CT number of the involved greater omentum, and posterior displaceme...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198601000-00032
更新日期:1986-01-01 00:00:00
abstract::Two cases of papillary carcinoma of the bladder are presented in which the ureter could not be demonstrated by standard radiographic techniques. Computed tomography (CT) allowed identification of the tumor filled ureter. Intraureteral papillary tumor has a radiographic density (CT number) above that of water but less ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-197908000-00007
更新日期:1979-08-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to determine whether computed tomography (CT) angiography with machine learning (ML) can be used to predict the rapid growth of abdominal aortic aneurysm (AAA). MATERIALS AND METHODS:This retrospective study was approved by our institutional review board. Fifty consecutive patie...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000958
更新日期:2020-01-01 00:00:00
abstract::Pelvic varices in women consist of tortuous and dilated parauterine and ovarian veins and have a characteristic appearance at CT and MRI. Imaging is critical in the evaluation of pelvic varices, both to prevent confusion with other conditions and because pelvic varices may be secondary to serious underlying pathology....
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199905000-00018
更新日期:1999-05-01 00:00:00
abstract:PURPOSE:Our goal was to assess the utility of different imaging directions in volumetric studies of the heart with MRI, in particular to identify the optimal imaging plane for studies of the right ventricle. METHOD:We examined 12 sets of human four-chamber cadaveric cardiac casts. Gradient echo MRI was performed in fo...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199811000-00012
更新日期:1998-11-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to explore the response to neoadjuvant chemotherapy (NAC) in nonconcentric shrinkage pattern of breast cancer (BC) patients using H-magnetic resonance spectroscopy. METHODS:Twenty-five BC patients were the study cohort. All patients received AT-based regimen as first-line treatment....
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000647
更新日期:2018-01-01 00:00:00
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
doi:10.1097/RCT.0000000000001048
更新日期:2020-11-01 00:00:00
abstract::The authors describe a technique for automated analysis of lesions demonstrated by computed tomography. A seed circle may be superimposed on a lesion by an operator controlled program. By selecting density limits, the program will then automatically outline a particular area of abnormal density and calculate the stati...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1977-07-01 00:00:00
abstract:OBJECTIVE:We aim to determine the relationship between leukoaraiosis and carotid artery stenosis. METHODS:Carotid-cerebral multislice computed tomography angiographies of 194 patients (mean age, 63.5 years) were retrospectively evaluated. Presence and severity of leukoaraiosis and carotid artery stenosis were compared...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e318284604e
更新日期:2013-05-01 00:00:00
abstract::In this review, our intension is to present imaging features of several categories of uncommon cases of brain infarctions including infarctions associated with neurovascular variants, infarctions along small arterial territories, and brainstem stroke syndromes. Infarctions associated with neurovascular variants includ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/RCT.0000000000000865
更新日期:2019-05-01 00:00:00
abstract::Neuroradiological findings in two cases of histologically confirmed intracranial sarcoidosis are presented, one with periaqueductal granulomata causing aqueduct obstruction. The granulomatous aggregation was of slightly greater attenuation than normal brain parenchyma and did enhance homogeneously following contrast m...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-197906000-00004
更新日期:1979-06-01 00:00:00
abstract::Congenital hyperinsulinism can be divided into diffuse or focal form. The treatment and outcome depend on distinguishing between the 2 forms. Pancreatic venous sampling was the only method available to localize the insulin secretion. [F]Fluoro-levodopa, 3,4-dihydroxy-L-phenylalanine positron emission tomography/comput...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e318031f55c
更新日期:2007-09-01 00:00:00
abstract:OBJECTIVE:To assess the prognostic value of computed tomography (CT) in hyperacute middle cerebral artery (MCA) infarcts. METHODS:The CT features, total CT score, and National Institutes of Health Stroke Scale (NIHSS) score were correlated with the 30-day mortality in 16 patients with a hyperacute MCA infarct. RESULT...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000136456.25506.c3
更新日期:2004-09-01 00:00:00
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
doi:10.1097/00004728-200405000-00009
更新日期:2004-05-01 00:00:00
abstract:OBJECTIVE:To determine the differences in enhancement of hepatocellular carcinoma during the first 5 minutes of postcontrast phases with gadoxetic acid (Gd-EOB-DTPA) vs gadobenate dimeglumine. METHODS:Ninety-five cirrhotic patients with hepatocellular carcinoma were examined on a 1.5-T scanner: 74 patients with Gd-BOP...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000234
更新日期:2015-07-01 00:00:00
abstract::Spiral CT (SCT) differs from conventional CT in that the entire heart can be rapidly imaged in the axial plane following the peripheral infusion of small quantities of contrast material. As contrast material travels through coronary artery bypass graft segments, good image detail is achieved, allowing visualization of...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199303000-00014
更新日期:1993-03-01 00:00:00
abstract:OBJECTIVE:Dynamic MRI was used to analyze patterns of contrast enhancement in muscle layers in the normal uterine body and to evaluate the depth of myometrial invasion by endometrial carcinoma. MATERIALS AND METHODS:Dynamic MRI was performed in 18 normal volunteers and 22 patients with endometrial carcinoma. Eight of ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199401000-00017
更新日期:1994-01-01 00:00:00
abstract::Hemolymphangiomatosis is an extremely rare entity that has never been described in the diffuse form. Its main pathologic feature is proliferation of lymphatic and vascular cells inducing interstitial and hematic lakes and then splenomegaly. We report a complete imaging study, including magnetic resonance (MR) imaging,...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000178713.40170.73
更新日期:2005-11-01 00:00:00
abstract::Radiological findings in three cases of sigmoid colon carcinoma invading the urinary bladder are reported. An irregular spiculated margin or nodular indentations in region of bladder dome were seen on intravenous urography. A soft tissue mass contiguous with an irregularly thickened urinary bladder wall and a circumfe...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199209000-00007
更新日期:1992-09-01 00:00:00
abstract:PURPOSE:The purpose of this work was to demonstrate the variety of causes of crazy-paving appearance (CPA) on high resolution CT (HRCT). METHOD:To identify cases exhibiting CPA (ground-glass opacity with superimposed interlobular septal thickening and intralobular interstitial thickening) on HRCT, we prospectively sea...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199909000-00021
更新日期:1999-09-01 00:00:00
abstract::The objective of this study was to measure the interobserver and interscan variation of coronary artery calcium scores using multidetector-row computed tomography (MDCT). Seventy-five patients underwent 2 sequential MDCT scans for coronary artery calcification. Each patient's score was separately measured by 3-blinded...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200401000-00006
更新日期:2004-01-01 00:00:00
abstract::The CT findings in a case of calcified gastric carcinoma of the mucin-producing type are described. These findings include localized thickening of the gastric wall and multiple tiny calcific nodules within it. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198410000-00044
更新日期:1984-10-01 00:00:00
abstract::We report a case of early phase Takayasu arteritis that predominantly involved the pulmonary arteries and had, along with expected radiographic findings, the unusual pattern of diffuse pulmonary parenchymal lesions on CT. We suggest that this finding may be an additional feature in early phase Takayasu arteritis and n...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/00004728-199809000-00025
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to investigate the image quality and diagnostic performance of model-based iterative reconstruction (MBIR) for hepatic vessel evaluation on low-tube-voltage (100 kilovolt [peak]) liver computed tomography (CT) for living donors. METHODS:Fifty-one liver donor candidates (low-ki...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3182ab6cc0
更新日期:2014-05-01 00:00:00