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 analyzed the images regarding the morphologic features and enhancement pattern. RESULTS:Of 11 solid SPTs, 9 SPTs (81.8%) were less than 3 cm. Alternatively, of the 18 mixed SPTs and 3 cystic SPTs, 15 SPTs (71.4%) were larger than 3 cm. The predominant imaging features were homogeneous hypoenhancement with a gradually incremental enhancement pattern showing a sharp margin without hemorrhage, whereas those of the mixed SPTs were heterogeneous enhancement showing a sharp margin with internal hemorrhage. CONCLUSION:Solid SPTs frequently present as small, well-defined tumors with a gradual enhancement and without hemorrhage or necrosis, and with features that differ from those of mixed or cystic SPTs.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Chae SH,Lee JM,Baek JH,Shin CI,Yoo MH,Yoon JH,Kim JH,Han JK,Choi BIdoi
10.1097/01.rct.0000445639.26581.65subject
Has Abstractpub_date
2014-03-01 00:00:00pages
249-57issue
2eissn
0363-8715issn
1532-3145journal_volume
38pub_type
杂志文章abstract:OBJECTIVE:Optic nerve glioma is a common finding in patients with neurofibromatosis type 1 (NF-1). Although dural ectasia of the optic nerve is encountered rarely, it has to be considered in the differential diagnosis. MATERIALS AND METHODS:Three patients affected by NF-1 were examined sequentially by CT and MRI. RES...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199409000-00009
更新日期:1994-09-01 00:00:00
abstract::Forty-two patients with hepatocellular carcinoma (HCC) were examined by magnetic resonance (MR) imaging. The presence of tumor was suggested in 41 of 42 cases by a high-intensity area on T2 weighted spin-echo (SE) images with a repetition time (TR) of 1.6 s. Specific findings of HCC such as the presence of a capsule, ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198611000-00012
更新日期:1986-11-01 00:00:00
abstract::Contrast enhancement has been studied with computed tomography in 18 patients with brain infarction. Four patients were examined on more than one occasion. A mode of contrast medium administration has been used that results in constant blood iodine concentration during the investigation. The enhancement pattern was an...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-197904000-00016
更新日期:1979-04-01 00:00:00
abstract:BACKGROUND:Increasing image pitch in computed tomographic (CT) imaging is a method through which scan time can be reduced, which can reduce motion artifacts. In this study, we assess the clinical feasibility of ultrahigh-pitch CT imaging made possible by dual-source CT. METHODS:Image pitch, total scan time, and image ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e31821a02c8
更新日期:2011-05-01 00:00:00
abstract:PURPOSE:The clinical and imaging findings of children with Swyer-James-MacLeod syndrome (SJMS) were reviewed to determine the incidence and type of bronchiectasis and analyze whether the clinical course of patients with bronchiectasis differed from that of patients without bronchiectasis. METHOD:Our study population c...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199807000-00015
更新日期:1998-07-01 00:00:00
abstract:PURPOSE:The purpose of this work was to assess the activation of the supplementary motor area (SMA) during simple motor, complex motor, hot sensory, and touch sensory tasks. METHOD:Functional MRI (fMRI) was performed in eight right-handed healthy volunteers. There were four tasks: simple motor, complex motor, hot sens...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200007000-00002
更新日期:2000-07-01 00:00:00
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
doi:10.1097/00004728-200403000-00005
更新日期:2004-03-01 00:00:00
abstract::Perinatal insults, including anoxia, may lead to a form of cerebral necrosis designated multicystic encephalomalacia. This common condition is characterized by (a) moderate atrophic ventricular dilatation, (b) intact ventricular walls with thickened subependymal glial layer, (c) multiple cysts of irregular size and sh...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1984-08-01 00:00:00
abstract:OBJECTIVE:Our goal was to elucidate the computed tomographic (CT) and clinicopathological features of inflammatory pseudotumor of the spleen. METHODS:Computed tomographic findings and clinic materials of 4 patients with inflammatory pseudotumor of the spleen were reviewed and compared with pathologic findings. RESULT...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000215
更新日期:2015-05-01 00:00:00
abstract::Calcifications of renal masses are common. They are usually dense, partial, small, punctate, and linear opacities. Diffuse calcification is an extremely rare feature of renal masses. Generally, calcified renal cell carcinomas are hypovascular, with calcifications in the interstitium, and they also contain fibrotic cap...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1992-07-01 00:00:00
abstract::The computed tomographic (CT) appearance of global infarction of the kidney has not been previously reported. We report a clinically proven case as well as two other cases with clinical and radiographic findings consistent with renal infarction. The CT appearance of global renal infarction corresponds with its convent...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198112000-00011
更新日期:1981-12-01 00:00:00
abstract::Presented is a case of ureteral pseudodiverticulosis diagnosed by multidetector computed tomography (CT). Axial and coronal reformatted CT images revealed multiple small (2-4 mm) outpouchings of both ureters, characteristic of ureteral pseudodiverticulosis. The unenhanced CT also revealed a 6-mm stone at the left uret...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e318173ebd0
更新日期:2009-03-01 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::The central dot sign on CT in Caroli disease has been described previously. We describe a patient with the central dot sign who had periductal cysts but did not have Caroli disease. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199011000-00034
更新日期:1990-11-01 00:00:00
abstract:OBJECTIVE:This study evaluated the incidence and course of a hematoma occurring after femoral arterial sampling. MATERIALS AND METHODS:We studied 270 patients who underwent computed tomography (CT) including the pelvis and blood gas sampling from femoral artery using a 22-gauge needle during 2010. This population comp...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3182483c55
更新日期:2012-03-01 00:00:00
abstract:OBJECTIVE:To verify the earliest detectability of liver metastases in patients who underwent serial multidetector computed tomography (MDCT) examinations. METHODS:We selected 12 patients with known primary cancer who underwent 4 or more contrast-enhanced, 4-detector MDCTs. When metastases had been reported, an evaluat...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200605000-00006
更新日期:2006-05-01 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::The diagnosis of abdominal actinomycosis is difficult because of its relative infrequency and imitation of other diseases. We present four cases in which these difficulties in diagnosis were experienced and show the utility of CT in suggesting this disease. Aspiration, biopsy, and proper culture technique, in conjunct...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198705000-00018
更新日期:1987-05-01 00:00:00
abstract:OBJECTIVE:To determine the incremental detection rate of clinically significant prostate cancer (csPCa) provided by sequential cores during in-bore magnetic resonance imaging (MRI)-guided prostate biopsies. METHODS:Single-center, retrospective interpretation of prospectively acquired data in men without previous diagn...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000001115
更新日期:2020-12-02 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate volume histogram analysis between usual interstitial pneumonia (UIP) and nonspecific interstitial pneumonia (NSIP). METHODS:Sixty cases (UIP, n = 22; NSIP, n = 38) were evaluated retrospectively. Three parameters (contrast, variance, and entropy) were calculated in 3 typ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e318043a20a
更新日期:2007-11-01 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::We report a case of abnormal pancreaticobiliary junction (APBJ), in which three-dimensional (3D) drip infusion cholangiography (DIC) computed tomography (CT) was useful to make the diagnosis. The 3D DIC CT clearly demonstrated reflux of the contrast material into the main pancreatic duct as well as a long common chann...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200107000-00023
更新日期:2001-07-01 00:00:00
abstract::A 31-year-old woman with an aneurysmal bone cyst of the L1 vertebral body proved by biopsy and studied by plain lumbar spine roentgenography, radionuclide studies, myelography, and CT is presented. The unusual location of involvement of the vertebral body alone and the difficulty in differential diagnosis between aneu...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198412000-00031
更新日期:1984-12-01 00:00:00
abstract:OBJECTIVE:The dimensions of the optic nerves, chiasm, and tracts were determined in normal patients and in patients with clinical evidence of optic atrophy to establish whether there was a significant difference between the two groups. MATERIALS AND METHODS:The authors analyzed thin section coronal MRI of 110 patients...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199309000-00003
更新日期:1993-09-01 00:00:00
abstract::Congenital alimentary duplications occur most commonly in relation to the ileum and are rare in the region of the stomach. A case of gastric duplication presenting in an adult and visualized on computed tomography is reported. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198304000-00025
更新日期:1983-04-01 00:00:00
abstract:PURPOSE:A new nonrigid registration method, designed to reduce the effect of movement artifact in subtraction images from breast MR, is compared with existing rigid and affine registration methods. METHOD:Nonrigid registration was compared with rigid and affine registration methods and unregistered images using 54 gad...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199909000-00031
更新日期:1999-09-01 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::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
doi:10.1097/00004728-199101000-00029
更新日期:1991-01-01 00:00:00
abstract::We describe a case of disruption of the blood-brain barrier (BBB) by nonionic, low osmolality contrast medium after abdominal angiography. One plausible explanation of this event is that acute hypertension during angiography may have increased the BBB permeability, allowing the contrast medium to leak across it. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198909000-00027
更新日期:1989-09-01 00:00:00
abstract::Seventy selected cases were reviewed retrospectively to assess the normal Gd-DTPA enhanced MR appearance of the cervical anterior epidural venous plexus. This structure can enhance quite markedly and has a somewhat variable appearance on MR imaging but we believe that it can be differentiated from pathological enhance...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199209000-00017
更新日期:1992-09-01 00:00:00