Abstract:
PURPOSE:The goal of our study was to assess the prevalence of pseudolesion in segment IV of the liver on MRI in patients with and without liver cirrhosis. METHOD:Patients were divided into three groups: 10 patients with angiographically confirmed aberrant gastric venous drainage and liver cirrhosis (Group 1), 250 consecutively selected patients with liver cirrhosis (Group 2), and 250 with normal liver (Group 3). The signal intensity of pseudolesion in segment IV on T1- and T2-weighted MRI in the 510 patients was analyzed. RESULTS:In Group 1, five pseudolesions were visible and hyperintense on T1-weighted images. On T2-weighted images, four were visible and hypointense. In Group 2, 11 were seen (4.4%). All were hyperintense on T1-weighted images. Five were hypointense on T2-weighted images. In Group 3, one pseudolesion was seen (0.4%). CONCLUSION:The prevalence of pseudolesion in segment IV on MRI is higher in liver cirrhosis than in normal liver. The lesion is hyperintense on T1-weighted images when visible.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Ueda K,Matsui O,Kadoya M,Yoshikawa J,Gabata T,Takahashi S,Kawamori Y,Takashima Tdoi
10.1097/00004728-199901000-00014keywords:
subject
Has Abstractpub_date
1999-01-01 00:00:00pages
63-8issue
1eissn
0363-8715issn
1532-3145journal_volume
23pub_type
杂志文章abstract:PURPOSE:The purpose of this study was to assess helical and electron beam CT scanning in the evaluation of renal vein involvement in patients with renal cell carcinoma (RCC). METHOD:Seventy-three patients with 76 pathologically proven RCC who underwent surgical resection or autopsy were evaluated for the accuracy of h...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199705000-00024
更新日期:1997-05-01 00:00:00
abstract::We present a patient with a progressively enlarging adrenal mass detected by CT which extended to the renal hilum and inferior vena cava. Pathologic evaluation revealed an adrenal abscess containing purulent debris. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198705000-00040
更新日期:1987-05-01 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::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
doi:
更新日期:1983-08-01 00:00:00
abstract:OBJECTIVE:The aims of this study were to evaluate the dependence of diffusion parameters on the b values adopted for intravoxel incoherent motion diffusion-weighted magnetic resonance imaging and to investigate the application value of multiple diffusion parameters obtained from monoexponential and biexponential models...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000569
更新日期:2017-07-01 00:00:00
abstract::We evaluated the feasibility of angiographic computed tomography (ACT) for diagnostic imaging in a patient with degenerative lumbar spine disease. ACT provides a volume data set out of a rotational acquisition with a c-arm-mounted flat-panel detector. Using this technique, radiographic myelography and myelographic com...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000228152.73528.54
更新日期:2006-09-01 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 percutaneous adrenal biopsy under CT guidance is described. The biopsy was performed after injection of physiologic saline solution into the paravertebral space, creating a wider pathway for needle insertion. This technique has been previously reported for biopsy of thoracic lesions, but in our case it was used for ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/00004728-199803000-00028
更新日期:1998-03-01 00:00:00
abstract:OBJECTIVE:To describe the magnetic resonance imaging spectrum of solid pseudopapillary tumors (SPTs), with an emphasis on solid SPTs. METHODS:Thirty-two patients with proven SPTs with preoperative magnetic resonance were included. The SPTs were classified into 3 types: solid, cystic, and mixed; and 2 radiologists anal...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000445639.26581.65
更新日期:2014-03-01 00:00:00
abstract:OBJECTIVE:Our goal was to clarify the ability of CT to evaluate intramural invasion of gastric cancer. MATERIALS AND METHODS:We reviewed bolus-enhanced CT images performed with orally administered 400-600 ml of water in 59 early gastric cancers and 22 advanced gastric cancers mimicking early gastric cancers macroscopi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199511000-00019
更新日期:1995-11-01 00:00:00
abstract:OBJECTIVE:The anal sphincter was imaged with MR using an internal coil to demonstrate its anatomy, contrast enhancement patterns, and appearance in disease. MATERIALS AND METHODS:A cylindrical saddle geometry coil was placed in the anal canal. Sixteen volunteers and 18 patients were examined. Imaging was performed on ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199509000-00010
更新日期:1995-09-01 00:00:00
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
doi:10.1097/01.rct.0000220801.76276.0f
更新日期:2006-11-01 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
pub_type: 杂志文章
doi:10.1097/00004728-198801000-00035
更新日期:1988-01-01 00:00:00
abstract::A new technique is described that utilises a novel magnetic resonance pulse sequence to produce a quantitative index both for ventricular and, for the first time, extraventricular intracranial CSF volumes. The pulse sequence is a combination of a null-point inversion recovery sequence with an extended spin-echo read (...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198609000-00015
更新日期:1986-09-01 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:PURPOSE:The purpose of the study was to investigate the magnetic resonance imaging findings of decidualized endometriotic cysts in comparison with endometriotic cysts associated with ovarian cancers. METHODS:Eighteen decidualized endometriotic cysts and 24 ovarian cancers were retrospectively assessed on height, signa...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000136
更新日期:2014-11-01 00:00:00
abstract:PURPOSE:The purpose of this study was twofold: (a) to determine the significance of high signal intensity surrounding the gallbladder as seen on T2-weighted HASTE (half-Fourier acquisition single shot turbo SE) MR images in patients with acute cholecystitis and (b) to determine the sensitivity of T2-weighted HASTE MR i...
journal_title:Journal of computer assisted tomography
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004728-199807000-00025
更新日期:1998-07-01 00:00:00
abstract::Temporomandibular joint (TMJ) disease is uncommon in children but frequently occurs in juvenile rheumatoid arthritis (JRA). Involvement is often asymptomatic; however, it can lead to growth disturbances and facial deformity. Thirty TMJs in 15 children (11 girls and 4 boys aged 3.5-18 years) with JRA were evaluated cli...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199305000-00022
更新日期:1993-05-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to develop and validate a novel noise insertion method that can accurately simulate lower-dose images from existing standard-dose computed tomography (CT) data. METHODS:The noise insertion method incorporates the effects of the bowtie filter, automatic exposure control, and el...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e318258e891
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:This study was aimed to evaluate the accuracy of "True Fast Imaging with Steady-State Precession" (TrueFISP) MR angiography (MRA) for diagnosis of renal arterial stenosis (RAS) in hypertensive patients. METHODS:Twenty-two patients underwent both TrueFISP MRA and contrast-enhanced MRA (CE-MRA) on a 1.5-T MR i...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,随机对照试验
doi:10.1097/RCT.0000000000000094
更新日期:2014-09-01 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:The objective of this study was to compare the image quality of renal arteries and veins with dual-energy spectral computed tomography (CT) imaging in late arterial phase using 270 and 320 mg I/mL of iodixanol and their influence on renal function. METHODS:A total of 1062 patients underwent renal CT angiogra...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000595
更新日期:2017-09-01 00:00:00
abstract::Two cases of thyroid-related papillary adenocarcinoma are presented. Both patients had clinically benign neck masses that were clearly separated from the thyroid gland. In both cases the thyroid gland was normal to clinical evaluation, CT, and 99mTc scanning. One patient had an occult thyroid carcinoma with a solitary...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198501000-00027
更新日期:1985-01-01 00:00:00
abstract:OBJECTIVES:The relationship between temporomandibular joint (TMJ) effusion and TMJ disorders is controversial. The frequency of TMJ effusion has varied as shown in previous studies. Furthermore, though some authors have suggested a correlation between TMJ effusion and pain, others question the relationship. In order to...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200309000-00006
更新日期:2003-09-01 00:00:00
abstract::Computed tomography provides excellent visualization of the trachea, but there have been only limited descriptions of variations in tracheal shape. The normal tracheal cartilage is U shaped. Lunate shaped trachea is uncommon and is characterized by a coronal/sagittal diameter ratio (tracheal index) greater than 1. We ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198905000-00033
更新日期:1989-05-01 00:00:00
abstract::Aneurysms arising from the extracranial carotid arteries are uncommon lesions. Clinically, they may present as lateral masses in the superior cervical area, as medial masses in the tonsillar fossa or parapharyngeal region, or as a mass palpable in both areas. Tenderness or pain may or may not be present. Pulsation is ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1986-05-01 00:00:00
abstract::Melorheostosis is a rare benign disease of cortical bone most frequently presenting as peripheral hyperostosis with a characteristic "melting wax" appearance on conventional radiographs. The disease most frequently affects the appendicular skeleton and is seen only rarely in the craniofacial bones. We discuss a case o...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3181572998
更新日期:2008-09-01 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 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::A case of progressive multifocal leukoencephalopathy (PML) with a classic clinical presentation but with unusual pathological and radiographic findings is reported. The pathology revealed evidence of prior hemorrhage, and imaging studies revealed focal cerebral atrophy as well as contrast enhancement on MR scans. The ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199503000-00025
更新日期:1995-03-01 00:00:00