Abstract:
OBJECTIVE:We describe a manual segmentation and image fusion method to assess the relationship between liver tumors and the radiofrequency ablation zone depicted on cross-sectional imaging. CONCLUSIONS:Manual fusion of segmented images of hepatic tumors from a preprocedural scan with the ablation zone depicted on the postinterventional imaging examination may be used to create a composite image demonstrating the ablation margin. This technique may improve evaluation of the size of the ablation margin around the circumference of the tumor, thereby predicting which patients are more likely to incur local tumor recurrence.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Iyer RS,Timm BA,Mitsumori LM,Kolokythas Odoi
10.1097/RCT.0b013e3181c4f797subject
Has Abstractpub_date
2010-03-01 00:00:00pages
226-8issue
2eissn
0363-8715issn
1532-3145pii
00004728-201003000-00014journal_volume
34pub_type
杂志文章abstract::We report a rare case of prolactinoma with deposition of amyloid and calcifications. Magnetic resonance imaging and/or computed tomography findings have been described in only a few cases. Possible mechanisms of amyloid deposition and calcification were discussed, and literatures were reviewed. In pituitary adenomas, ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e31820d7bdf
更新日期:2011-03-01 00:00:00
abstract::Antemortum detection of renal metastases can be made by computed tomography (CT), particularly if the known primary malignancy is in a late stage. The CT scans of 10 oncologic patients with focal renal metastases were reviewed (confirmation by surgery in four, follow-up CT demonstrating new lesions or lesion growth in...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198312000-00017
更新日期:1983-12-01 00:00:00
abstract::Primary adrenal lymphoma is extremely rare. We describe 2 patients who presented with adrenal insufficiency or fever 'of unknown origin. Conventional imaging studies demonstrated bilateral bulky adrenal masses, and whole-body FDG positron emission tomography- computed tomography showed that the masses were the unique ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000216112.15564.0c
更新日期:2006-09-01 00:00:00
abstract:OBJECTIVE:This study aimed to identify the computed tomographic colonography (CTC) findings of incomplete colonoscopy compared with those of complete colonoscopy. METHODS:The clinical data and CTC imaging data from January 2004 to December 2012 were retrospectively obtained at 2 different institutions and reviewed by ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000741
更新日期:2018-09-01 00:00:00
abstract:PURPOSE:To determine the feasibility of diffusion-weighted magnetic resonance (MR) imaging (DWI) of uterine cervical cancer and to investigate whether the apparent diffusion coefficient (ADC) values of cervical cancer differ from those of normal cervix and whether they could indicate the histologic type and the patholo...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e31819e93af
更新日期:2009-11-01 00:00:00
abstract::In children it is often necessary to ligate the splenic artery and the main collateral supply to the spleen during liver transplantation. The complication of splenic infarction has been observed on postoperative CT in such patients. The purpose of our study was to determine the incidence and CT appearance of splenic i...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199005000-00007
更新日期:1990-05-01 00:00:00
abstract::The effect of hemodialysis on the CT absorption value of the liver was examined in 14 hemodialysis patients. In the high ultrafiltration group [10 patients with a weight loss of -1.7 to -3.5 (2.9 +/- 0.6) kg], the hepatic CT absorption value increased from 49.6 +/- 7.0 to 58.7 +/- 8.7 Hounsfield units (p less than 0.0...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198408000-00021
更新日期:1984-08-01 00:00:00
abstract::We report a unique case of early-phase Takayasu arteritis in which the vessels demonstrated accumulation of [18F]fluorodeoxyglucose (FDG) on PET scanning. This observation suggests the possible use of FDG-PET for the diagnosis of vasculitis. Early diagnosis of Takayasu arteritis may permit early treatment and possibly...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199901000-00004
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVE:The purpose of our study was to quantify peritumoral brain edema (PTE) in vivo using NMR relaxation time imaging, as the longitudinal relaxation time T1 is proportional to tissue water content, and to use the method for monitoring the effects of glucocorticoids (GCCs) on PTE in brain tumor patients as a funct...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199407000-00001
更新日期:1994-07-01 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
pub_type: 杂志文章
doi:10.1097/00004728-198805010-00018
更新日期:1988-05-01 00:00:00
abstract::The purpose of this report is to describe a further distinctive cause of crazy-paving pattern on thin-section computed tomography in a patient affected by pulmonary granulomatous mycosis fungoides. It was possible to reconcile the crazy-paving appearance on thin-section computed tomography scan with the histopathologi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000214269.72180.64
更新日期:2006-09-01 00:00:00
abstract::An increase in the effective atomic number of blood is among the factors allowing or influencing the visualization of the major cerebral vessels on noncontrast CT. Bromine (atomic number, 50) attenuates 70 keV X-rays significantly and was responsible for a striking enhancement of the major cerebral vessels on the nonc...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198410000-00035
更新日期:1984-10-01 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:OBJECTIVE:The aim of this study was to explore the diagnostic difference among the combination of diffusion-weighted imaging (DWI) and T2-weighted imaging (T2WI), diffusion-weighted imaging (DWI), and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) in predicting deep myometrial invasion of endometrial ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,meta分析,评审
doi:10.1097/RCT.0000000000000280
更新日期:2015-09-01 00:00:00
abstract:OBJECTIVE:The objective was to elucidate clinical effectiveness of submillimeter multislice 2- and 3-dimensional computed tomography (CT) for diagnosis of congenital middle ear anomaly. MATERIALS AND METHODS:Preoperative CT and operative findings were retrospectively analyzed in 36 ears of 33 patients. The distance be...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000093
更新日期:2014-09-01 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
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000033
更新日期:2013-11-01 00:00:00
abstract::Transorbital penetration of the cranial cavity by a small wooden object can pass unnoticed, while producing severe, life-threatening consequences. The occurrence of a traumatic intracranial aneurysm secondary to a wooden foreign body has not been reported previously in the English literature, to our knowledge. Familia...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198705000-00030
更新日期:1987-05-01 00:00:00
abstract:OBJECTIVE:This study aimed to evaluate the interobserver variability of right-to-left ventricular (RV/LV) diameter ratios on computed tomographic pulmonary angiographies at reduced tube potential. METHODS:Consecutive computed tomographic pulmonary angiographies performed at 80 kVp for subjects weighing less than 80 kg...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3182994f37
更新日期:2013-09-01 00:00:00
abstract:PURPOSE:The purpose of this study was to assess the accuracy of magnetic resonance imaging (MRI), particularly, dynamic MRI, in distinguishing ovarian fibromas from subserous uterine leiomyomas. MATERIAL AND METHODS:Fifteen ovarian fibromas and 15 subserous uterine leiomyomas were retrospectively reviewed. All MR exam...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000237810.88251.9e
更新日期:2007-03-01 00:00:00
abstract::We describe a new multistep procedure for CT fluoroscopy-guided core biopsy, which allows confirmation of the biopsy-sampling trough and the final needle tip position prior to sampling. Twelve lesions measuring < or =2 cm or in close proximity to vital structures were biopsied using commercially available biopsy syste...
journal_title:Journal of computer assisted tomography
pub_type: 临床试验,杂志文章
doi:10.1097/00004728-200003000-00015
更新日期:2000-03-01 00:00:00
abstract::We describe a patient with a metastatic liver tumor that showed a cordlike shadow traversing the tumor on CT. Histopathologically, this cordlike shadow within the metastatic liver tumor was proved to be an infiltrated portal vein without blood flow surrounded by fibrous tissue. Vascular structures traversing a focal l...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199501000-00026
更新日期:1995-01-01 00:00:00
abstract::Magnetic susceptibility variations due to the presence of iron in neural tissue can result in a shift of local resonance frequency, decreased T2 resulting from water diffusion through local field gradients, and line broadening due to field inhomogeneity within a voxel. In this study, modified spin echo phase contrast ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198803000-00014
更新日期:1988-03-01 00:00:00
abstract:OBJECTIVE:To retrospectively compare delayed enhanced computed tomography (CT) and 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET)/CT (PET/CT) evaluating adrenal masses in oncology patients undergoing both examinations. METHODS:Twenty adrenal masses in 14 patients were retrospectively included. For d...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/rct.0b013e31802fa8e1
更新日期:2007-07-01 00:00:00
abstract:OBJECTIVE:MRI offers many opportunities for noninvasive in vivo measurement of structure-function relationships in the human brain. Although automated methods are now available for whole-brain measurements, an efficient and valid automatic method for volume estimation of subregions such as the frontal or temporal lobes...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199601000-00018
更新日期:1996-01-01 00:00:00
abstract::Flow phenomena occurring after the bolus injection of contrast material can simulate the presence of pathology on thoracic computed tomography. In a review of 50 dynamic scans performed after contrast medium injection, apparent filling defects in the superior vena cava were seen in 46. In four cases, retrograde fillin...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198206000-00004
更新日期:1982-06-01 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
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000800
更新日期:2018-11-01 00:00:00
abstract::Three patients are presented in whom computed tomography incidentally demonstrated low density masses posterior to, but separate from, the right kidney. In two, these were proven to represent unilocular cysts, and the third is presumed cystic. Possible etiologies are discussed. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1979-12-01 00:00:00
abstract::Mucinous cystadenocarcinoma (MCA) is a rare tumor that is considered to be a cystic variant of mucin-producing lung adenocarcinoma. MCA expands grossly by storing mucus and contains few neoplastic cells. We present the CT images of three patients with MCA and correlate them with pathologic specimens. The CT findings o...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199907000-00028
更新日期:1999-07-01 00:00:00
abstract:OBJECTIVE:The aim of the study was to investigate the feasibility of low-tube-voltage computed tomography (CT) in combination with 3-dimensional adaptive iterative dose reduction (AIDR-3D) algorithm in lower extremity CT angiography. METHODS:The CT data of the 120-kV group (n = 30) were reconstructed with filtered bac...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000356
更新日期:2016-03-01 00:00:00
abstract:PURPOSE:The purpose of this study was to evaluate the usefulness of the "bridging vascular sign" in the diagnosis of an exophytic uterine leiomyoma and differentiation of a uterine leiomyoma from some other mass arising in the adnexa on pelvic MRI. METHOD:Of 52 women with a pelvic mass in whom pelvic MRI was performed...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200001000-00012
更新日期:2000-01-01 00:00:00