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. METHODS:From November 2012 to February 2013, a total of 160 patients who were scheduled for surgical treatment of thyroid cancers and follicular neoplasms were enrolled. A single radiologist prospectively evaluated the presence and features of TPLs on preoperative thyroid US, noting the size, location, degree of continuity with the main thyroid gland, and superior extent of each TPL. On a different day, the same radiologist retrospectively evaluated CT findings in the same patients from a picture archiving and communication system. RESULTS:Ultrasound revealed TPLs in 82 cases (50.6%) and CT revealed TPLs in 96 cases (59.3%). Thyroid pyramidal lobes predominantly originated from the left thyroid lobe on both US (34/82, 41.5%) and CT (40/96, 41.7%). The mean length, anteroposterior diameter, transverse diameter, and volume of the TPLs were 20.9 mm, 2.0 mm, 5.8 mm, and 268.6 mm on US and 22.8 mm, 1.9 mm, 6.1 mm, and 344.0 mm on CT, respectively. When CT findings were used as the reference standard, the sensitivity, specificity, positive and negative predictive values, as well as accuracy of US for detecting TPLs were 82.3, 95.3, 93.3, 78.2, and 87.5%, respectively. CONCLUSIONS:Like neck CT, thyroid US may be useful in evaluating TPLs.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Kim KS,Kim DW,Sung JYdoi
10.1097/RCT.0000000000000054subject
Has Abstractpub_date
2014-05-01 00:00:00pages
464-8issue
3eissn
0363-8715issn
1532-3145journal_volume
38pub_type
杂志文章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::A case of a huge intracranial frontoparietal osteochondroma in a 20-year-old man is reported. The presenting symptoms were headache, vomiting, and blurred vision. Apart from papilledema, no other abnormal neurological signs were present. A specific preoperative diagnosis could not be reached from the information provi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198102000-00022
更新日期:1981-02-01 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::Chondroblastoma is a rare benign primary bone tumor with generally characteristic plain radiographic features. In some cases, however, the benign nature and the extent of the lesion may not be appreciated using conventional radiography. We report the CT findings of chondroblastoma in three patients. In one patient CT ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198410000-00020
更新日期:1984-10-01 00:00:00
abstract:PURPOSE:The purpose of this study was to clarify characteristics of combined hepatocellular and cholangiocarcinoma (HCC-CC) on CT and clinicopathological examinations. METHODS:Dynamic incremental CT was performed on 15 combined HCC-CC patients. CT of the early phase was started at 30 s and of the late phase at 120-140...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199701000-00011
更新日期:1997-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this report was to study the contrast enhancement of reactive hematopoietic regions in bone marrow on Gd-diethylenetriamine pentaacetic acid (DTPA) enhanced MRI. MATERIALS AND METHODS:We compared the contrast enhancement of reactive hematopoietic regions in the marrow of patients with aplastic...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199403000-00008
更新日期:1994-03-01 00:00:00
abstract::To evaluate the ability of gradient echo MR to define the vacuum phenomena, 14 cadaveric lumbar spines were imaged by spin echo and gradient echo MR, CT, and plain radiography following injection of varying amounts of air into the intervertebral disks. Gradient echo MR was more sensitive than spin echo MR or plain rad...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199103000-00008
更新日期:1991-03-01 00:00:00
abstract:PURPOSE:The purpose of this study was to define the radiologic features of pulmonary neuroendocrine cell hyperplasia and correlate them with clinical findings. METHOD:Five women, ranging in age from 45 to 63 years, were diagnosed with pulmonary neuroendocrine cell hyperplasia. Two radiologists assessed the presence an...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200203000-00003
更新日期:2002-03-01 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:PURPOSE:The space below the kidneys where the anterior and posterior pararenal spaces converge has been defined only vaguley in the past. We describe observations on clinical CT cases and studies on cadavers that lead to a refinement in the terminology for this extraperitoneal compartment. METHOD:Abdominal/pelvic CT s...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199703000-00011
更新日期:1997-03-01 00:00:00
abstract:PURPOSE:To evaluate the agreement and correlation between attenuation values and vascular calcification volume for intra-abdominal structures from true noncontrast (TNC) images and those from virtual noncontrast (VNC) images obtained by dual-source dual-energy computed tomography (CT) using a quadriphasic dynamic proto...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000001057
更新日期:2020-07-01 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:OBJECTIVE:Among the various organs that may be affected by hereditary hemorrhagic telangiectasia (HHT), the liver can show various degrees of vascular and parenchymal involvement. The purpose of this prospective study comprising a large series of patients was to reassess the computed tomography (CT) features of hepatic...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200407000-00009
更新日期:2004-07-01 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::Numerous cerebral asymmetries are shown on cerebral computed tomography (CT). Those seen most commonly are: (a) the left occipital pole is frequently wider and protrudes further posteriorly than the right; (b) the right frontal area often measures wider than the left, and the right frontal pole usually protrudes eithe...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-197809000-00018
更新日期:1978-09-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the diagnostic ability of magnetic resonance imaging (MRI) in premenopausal women with G1 endometrial carcinoma. METHODS:Twenty-six patients underwent T2W, diffusion weighted, and dynamic contrast-enhanced 3-T MRI. The degree of myometrial invasion was pathologically cl...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000689
更新日期:2018-05-01 00:00:00
abstract::Two patients with phenylketonuria are reported with white matter lesions. Diffusion magnetic resonance (MR) imaging revealed restricted diffusion patterns (high signal) on b = 1000 s/mm2 images associated with low apparent diffusion coefficient values ranging between 0.44 x 10-3 mm2/s and 0.56 x 10-3 mm2/s. On proton ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200307000-00016
更新日期:2003-07-01 00:00:00
abstract:OBJECTIVE:To illustrate the techniques and the MRI appearance of meniscal transplants. MATERIALS AND METHODS:Three patients underwent MRI of the knee between 2 weeks and 14 months after meniscal transplantation. RESULTS:Although postoperative artifacts were present, in all three patients the position, signal intensit...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199503000-00015
更新日期:1995-03-01 00:00:00
abstract::We present clinical and chest computed tomography (CT) features of 5 cases of pediatric patients with 2019 novel coronavirus. Two patients had fever and dry cough, whereas the rest of 3 patients were asymptomatic. Three patients had unilateral ground glass opacities with or without consolidation in the subpleural regi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000001023
更新日期:2020-05-01 00:00:00
abstract::A 77-year-old man with loss of consciousness, circulatory collapse, and apnea caused by myocardial infarction underwent cardiopulmonary resuscitation with intratracheal intubation and manual bag ventilation. Computed tomography of the head demonstrated massive air embolism in the entire cerebral circulation. The patie...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198903000-00024
更新日期:1989-03-01 00:00:00
abstract:OBJECTIVE:This study was aimed to determine the utility of quantitative dynamic contrast-enhanced magnetic resonance imaging (MRI) in differentiating benign and malignant lesions in patients with known thyroid gland lesions scheduled for resection. METHODS:Patients scheduled for resection of a thyroid mass were prospe...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000304
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:This study was done to determine the feasibility and potential utility of whole-body PET using the glucose analogue 2-[18F]fluoro-2-deoxy-D-glucose (FDG) for the detection of primary malignancies and metastatic lesions. MATERIALS AND METHODS:This was a prospective, nonrandomized study of whole-body FDG-PET i...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199307000-00012
更新日期:1993-07-01 00:00:00
abstract:OBJECTIVE:The aim of the study was to establish the reference window settings for display of virtual monoenergetic images (VMIs) from spectral detector computed tomography when assessing hypodense liver lesions. METHODS:In patients with cysts (n = 24) or metastases (n = 26), objective (HU, signal-to-noise ratio [SNR])...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000794
更新日期:2018-11-01 00:00:00
abstract::We report a case of nocardia choroid plexitis with extension into the parenchyma of the left parietal lobe in a previously well 13-year-old girl. The neuroimaging findings mimicked those of an intracranial neoplasm. This case illustrates the importance of including infectious etiologies in the differential diagnosis o...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199405000-00025
更新日期:1994-05-01 00:00:00
abstract::Neutrons and X-rays are mathematically equivalent as probes in computed tomography. However, structure in the energy dependence of neutron total cross sections and the feasibility of using time-of-flight techniques for energy sensitivity in neutron detection suggest that spatial distributions of specific substances ca...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198302000-00021
更新日期:1983-02-01 00:00:00
abstract::Seven cases of Poland syndrome were investigated with CT and/or MR to assess the extent of the muscle abnormalities of the shoulder girdle. In all cases the absence of the sternocostal head of the pectoralis major was clearly shown, as were any associated abnormalities of the pectoralis minor, serratus anterior, and l...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199205000-00019
更新日期:1992-05-01 00:00:00
abstract:PURPOSE:Our goal was to find a causal relation between disk degeneration in nonfused lumbar segments, back pain, and the angle of scoliotic curves 21-30 years after dorsal spondylodesis. METHOD:Thirty-two patients with scoliosis had been treated by dorsal spondylodesis 21-30 years prior to this study (mean 25.2 +/- 2....
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199607000-00015
更新日期:1996-07-01 00:00:00
abstract::This article will familiarize the reader with useful tools and trouble-shooting tips for web-based conferencing. Radiology-based scenarios for web conferencing are also provided. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000001072
更新日期:2020-07-01 00:00:00
abstract::A Monte Carlo technique was used to simulate some of the important physical processes involved in the coincidence detection of gamma rays by a positron emission tomograph. The major effect considered here is the detection of Compton scattered gamma rays as coincidence counts. The Compton scattering of gamma rays in a ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198304000-00022
更新日期:1983-04-01 00:00:00
abstract::Twenty-one previously reported cases of aneurysms of the anterior inferior cerebellar artery (AICA) were reviewed. They often present acutely with subarachnoid hemorrhage due to rupture, or less frequently with an insidious onset, as a cerebellopontine angle (CPA) mass. Rupture of the aneurysm is usually not difficult...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198609000-00038
更新日期:1986-09-01 00:00:00