解剖学和形态学
麻醉学
听力与言语-语言病理学
行为科学
心脏和心血管系统
细胞和组织工程学
临床神经病学
危重症监护医学
牙科,口腔外科和医学
皮肤病学
急诊医学
内分泌学和新陈代谢
肠胃学和肝脏学
老人病学和老年医学
卫生保健科学和服务
血液学
免疫学
传染病
综合和补充性医学
医学伦理学
医学信息学
医学实验室技术
医学,全科和内科
医学,法律
医学,研究和试验
神经系统科学
护理
营养学和饮食学
产科医学和妇科医学
肿瘤学
眼科学
整形外科学
耳鼻喉科学
病理学
儿科学
周围血管疾病
药理学和药剂学
生理学
基本医疗保健
精神病学
公共、环境和职业卫生
放射学,核医学和医学成像
康复学
生殖生物学
呼吸系统
风湿病学
运动科学
外科学
毒理学
热带医学
泌尿学和肾脏学
病毒学
老年医学
健康政策和服务
心理学,临床
abstract::A whole-body, multislice positron emission tomograph, Positologica III, has been constructed based on a sampling method "positology." The scanner consists of four continuously rotating detector rings with 192 bismuth germanate (BGO) crystals (12 X 24 X 24 mm) arranged at irregular intervals along each ring, providing ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198509000-00018
更新日期:1985-09-01 00:00:00
abstract::Multiple authors have pointed out the difficulty of detecting spondylolysis with lumbar CT. A simple method to detect spondylolysis on lumbar CT is described. Identifying one intact cortical ring for each vertebra absolutely excludes the diagnosis obviating the time-consuming need to search each image looking for posi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1985-07-01 00:00:00
abstract::A case of cerebral toxoplasmosis in a patient with acquired immune deficiency syndrome who was evaluated by both CT and magnetic resonance is reported. Magnetic resonance proved to be far more sensitive in detecting the intracranial lesions than CT. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198507010-00026
更新日期:1985-07-01 00:00:00
abstract::Lumbar apophyseal fracture is an uncommon injury that occurs during adolescence. We described two cases in young adults with back pain. The radiographic findings were distinctive. In both cases CT demonstrated characteristic bony fragments displaced posteriorly into the spinal canal and a corresponding defect in the p...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198507010-00013
更新日期:1985-07-01 00:00:00
abstract::Three noninvasive imaging methods, CT, scintigraphy with 201TlCl and 99mTcO4-, and ultrasonography, were performed on 36 patients with chronic renal failure and secondary hyperparathyroidism. The patients subsequently underwent total parathyroidectomy and parathyroid autograft. The detection rates of the three methods...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198507010-00014
更新日期:1985-07-01 00:00:00
abstract::To determine the value of sagittal magnetic resonance (MR) in diagnosing thoracic abnormality, we reviewed the multisection sagittal spin-echo MR images of 13 normal subjects and 23 patients with a variety of thoracic abnormalities. In the abnormal subjects sagittal images were compared with transaxial MR performed wi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198505000-00010
更新日期:1985-05-01 00:00:00
abstract::The preoperative temporal bone CT scans of 13 patients with surgically proven acquired cholesteatoma were retrospectively reviewed for bony erosions and for extension beyond the temporal bone. A correlation with the clinical and surgical findings was also carried out. The CT findings are discussed and illustrated as w...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198505000-00021
更新日期:1985-05-01 00:00:00
abstract::A case of external jugular venous thrombosis secondary to misplacement of central venous catheter is presented. The CT findings included enlargement of the external jugular vein, central thrombosis, and vessel wall enhancement. Computed tomography is an excellent noninvasive modality for the evaluation of suspected ve...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198505000-00036
更新日期:1985-05-01 00:00:00
abstract::Three cases of hemorrhagic nerve sheath tumors of the scalp are presented with emphasis on CT findings. Each mass produced a mixed pattern of CT density due to the combination of tumor and hemorrhage within it. The CT findings were remarkably similar in the three patients and included a calvarial abnormality underlyin...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198503000-00008
更新日期:1985-03-01 00:00:00
abstract::Subchondral fractures in association with an intact joint space and narrowing of the joint space have not previously been reported with sacroiliac joint trauma in children. The subchondral fractures are thought to occur through the zones of cartilage proliferation and provisional calcification in the growing cartilage...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198503000-00023
更新日期:1985-03-01 00:00:00
abstract::Intracranial opportunistic infections have been widely reported in patients with acquired immune deficiency syndrome (AIDS). We report an unusual presentation of Toxoplasma gondii infection in a patient with AIDS. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198503000-00033
更新日期:1985-03-01 00:00:00
abstract::We report an unusual case of diffuse infiltration of the mesentery by amyloidosis. The CT, sonographic, and operative findings mimicked abdominal carcinomatosis. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1985-01-01 00:00:00
abstract::Computed tomography of a benign mesenchymoma in a 7-year-old boy demonstrated bone and fat intermingled with nonspecific soft tissue. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198501000-00041
更新日期:1985-01-01 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::Prior to the development of CT, cardiac and pericardiac masses were evaluated by chest roentgenography, angiocardiography, and echocardiography. In most cases preoperative diagnosis of a specific entity was impossible. Preoperative CT diagnosis of an intrapericardial developmental mass becomes possible because of the ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198501000-00012
更新日期:1985-01-01 00:00:00
abstract::A noninvasive technique for measuring blood flow by xenon-enhanced X-ray transmission CT has been developed and reported quite extensively in recent years. In this method nonradioactive xenon gas is inhaled, and the temporal changes in radiographic enhancement produced by the inhalation are measured by sequential CT. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198412000-00015
更新日期:1984-12-01 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::In view of the lack of ionizing radiation, ability to image in a variety of planes, and high contrast resolution, magnetic resonance (MR) imaging may have a role in obstetrical management. Three fetuses with severe cerebral abnormalities were studied by MR in utero. The findings were correlated with ultrasound examina...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198412000-00003
更新日期:1984-12-01 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::Computed tomography circumvents many of the problems encountered in the traditional radiographic investigation of mummies. This case report demonstrates that CT provides an improved evaluation of mummification techniques and bony pathology as well as a better capability of characterizing preserved soft tissue. ...
journal_title:Journal of computer assisted tomography
pub_type: 历史文章,杂志文章
doi:
更新日期:1984-10-01 00:00:00
abstract::The unusual CT appearances of a renal neoplasm, which we have described as a "focal" obstructive nephrogram secondary to transitional cell carcinoma, is reported. An explanation of the appearance is postulated. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1984-10-01 00:00:00
abstract::The CT findings in hepatic involvement by Echinococcus granulosus are described. Pathognomonic signs of the hydatid nature of a cystic lesion are visualization of the cystic wall on plain CT, calcification of the cyst wall, daughter cysts, and membrane detachment. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198410000-00005
更新日期:1984-10-01 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::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::Twenty-five patients with nonseminomatous germ cell carcinoma of the testis underwent CT and nuclear magnetic resonance (NMR) of the retroperitoneum followed by radical retroperitoneal lymph node dissection for surgical proof of metastatic disease. Computed tomography correctly predicted the presence or absence of ade...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198408000-00023
更新日期:1984-08-01 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::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 case of pulmonary venoocclusive disease in which chest radiography, when supplemented with computed tomography after contrast medium administration, was specific enough to make the diagnosis without resorting to more invasive, potentially dangerous procedures. A brief review of the literature, with emphasi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198408000-00032
更新日期:1984-08-01 00:00:00
abstract::Maple syrup urine disease (MSUD) is an inherited metabolic disorder due to decreased decarboxylation of branched chain keto acids triggering an accumulation of leucine, isoleucine, and valine. We describe two infants with biochemically confirmed MSUD in whom computed tomography (CT) revealed cerebral edema. In one of ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198406000-00007
更新日期:1984-06-01 00:00:00
abstract::The computed tomographic (CT) characteristics of intraabdominal tuberculosis are not specific. A recent article from South Africa proposed a set of criteria that included high density ascites and mesenteric involvement, consisting of thickening and adenopathy, as possible criteria for the diagnosis of tuberculous peri...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198406000-00014
更新日期:1984-06-01 00:00:00
abstract::A recent case of absence of a cervical pedicle in a traumatized patient is presented. An incorrect radiological interpretation of the patient's plain films resulted in inappropriate management. Further radiological investigation, including computed tomography, revealed the underlying abnormality, and prevented subsequ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198406000-00033
更新日期:1984-06-01 00:00:00
abstract::A psoas mass in a patient with a history of penetrating trauma to the area was demonstrated by computed tomography (CT) to represent a lumbar artery pseudoaneurysm surrounded by hematoma. This report emphasizes the importance of recognizing the anatomic position of the lumbar arteries on CT images and considering the ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198406000-00044
更新日期:1984-06-01 00:00:00
abstract::Cervical spinal epidural hematoma is a rare cause of acute neurologic syndromes including paralysis of various types. Although devastating, it can be successfully treated surgically if recognized early. We report two cases of spontaneous cervical epidural hematoma diagnosed by computed tomography, the first with a pla...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1984-04-01 00:00:00
abstract::We reviewed our clinical experience of the past 1 1/2 years using computed tomography (CT) in cases of suspected renal vein thrombosis; we detected three cases and correctly excluded renal vein thrombosis in an additional three patients. Because of our limited clinical experience, we surgically created left renal vein...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1984-04-01 00:00:00
abstract::Cystic hygromas most often occur in the neck in children and are benign lesions not associated with cranial nerve palsies. We present two cases in which a facial nerve paralysis was one of the presenting symptoms. The computed tomographic (CT) scans localized the lesions, suggested a diagnosis, and obviated angiograph...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198402000-00021
更新日期:1984-02-01 00:00:00
abstract::Distinguishing juxtadiaphragmatic pleural and peritoneal fluid by computed tomography (CT) is sometimes difficult. We evaluated the distribution of fluid in 50 consecutive patients with pleural effusion or ascites or both. Juxtadiaphragmatic pleural fluid was nearly always found posteromedially, whereas peritoneal flu...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198402000-00005
更新日期:1984-02-01 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::We report a case of an extramedullary plasmacytoma arising from the nasopharynx. The computed tomographic appearance of this rare tumor is discussed. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198312000-00028
更新日期:1983-12-01 00:00:00
abstract::Twenty-five patients with surgically and histologically proven squamous cell carcinoma of the palatine tonsil were studied with computed tomography (CT) using a high dose intravenous contrast enhancement technique. With this technique, CT demonstrated the primary carcinoma within the palatine fossa as well as its cont...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198312000-00007
更新日期:1983-12-01 00:00:00
abstract::In a consecutive group of 1,067 noncholecystectomized patients referred for computed tomography including the upper abdomen, gallstones were seen in 13%. In 4% of the patients with gallstones, gas-containing calculi were found. On reviewing the conventional plain films such stones were revealed in less than one-half o...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198310000-00009
更新日期:1983-10-01 00:00:00