Abstract:
:Following human immunodeficiency virus (HIV) infection, there is an ordered progression of immunologic abnormalities that results from the selective infection of the T4 helper/inducer subset of T lymphocytes. The loss of helper T-cell function disrupts both the cellular and humoral aspects of the immune response. The T lymphocytes decrease in both number and function. The peripheral blood B lymphocytes demonstrate marked polyclonal activation and are unable to mount a serologic response to new antigens. The infected monocytes and macrophages serve as reservoirs for HIV and act as vehicles that transport the virus to target organs. Decreased activity of natural killer cells may promote progression of acquired immunodeficiency syndrome (AIDS). Factors that suppress the reaction of T and B lymphocytes to stimuli have been identified in the sera of AIDS patients. In conclusion, HIV infection causes progressive dysfunction and destruction of the entire immune system, resulting in severe opportunistic infections, neoplasms, and shortened survival of AIDS patients.
journal_name
J Thorac Imagingjournal_title
Journal of thoracic imagingauthors
Batra Psubject
Has Abstractpub_date
1991-09-01 00:00:00pages
1-5issue
4eissn
0883-5993issn
1536-0237journal_volume
6pub_type
杂志文章,评审abstract:PURPOSE:The aim of this study was to evaluate the literature for articles assessing radiofrequency ablation (RFA) for pulmonary malignancy. MATERIALS AND METHODS:The "bottom-up" approach to evidence-based practice was applied by 2 reviewers to the retrieval and appraisal of original research articles published on pulm...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/RTI.0b013e3181e48d5e
更新日期:2011-02-01 00:00:00
abstract::Pulmonary artery dissection is a rare but life-threatening disease, which has mainly been diagnosed at postmortem examination rather than in living patients. Herein we report an unusual case of pulmonary artery dissection involving the right and left pulmonary arteries with Eisenmenger syndrome confirmed by multidetec...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0b013e3181c65af5
更新日期:2010-11-01 00:00:00
abstract::Chronic obstructive pulmonary disease is defined as a preventable and treatable disease state characterized by airflow limitation that is not fully reversible. This review will discuss the relevant anatomy of the secondary pulmonary lobule, the subtypes of emphysema, and their imaging appearances and corresponding pat...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/RTI.0b013e3181b32676
更新日期:2009-08-01 00:00:00
abstract:INTRODUCTION:Computerized tomography (CT) scanning shows promise as an outcome surrogate for cystic fibrosis (CF) lung disease progression. The scoring system used to convert the CT image to numeric data is an essential determinant of the performance of CT scanning. METHODS:Three radiologists independently scored 16 h...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,随机对照试验
doi:10.1097/01.rti.0000203937.82276.ce
更新日期:2006-03-01 00:00:00
abstract:PURPOSE:Computed tomographic pulmonary angiography (CTPA) is the test of choice for patients with acute chest pain and suspected pulmonary embolism (PE). This examination is excellent for the diagnosis of PE and can also often identify alternative diagnoses. The early phase of contrast, however, may not allow for optim...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0000000000000476
更新日期:2020-09-01 00:00:00
abstract:PURPOSE:The aim of this study was to evaluate the impact of percutaneous pulmonary valve implantation (PPVI) and surgical pulmonary valve replacement (SPVR) on biventricular and pulmonary valve function using cardiac magnetic resonance. MATERIALS AND METHODS:Thirty-five patients aged 20±8 years (mean±SD) underwent PPV...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0000000000000272
更新日期:2017-11-01 00:00:00
abstract::Interstitial lung disease (ILD) is a common cause of morbidity and mortality in patients with connective tissue disease (CTD). In a minority of patients the ILD may be the presenting (or only) manifestation of an underlying CTD. Diagnosis of CTD-related ILD relies on a multidisciplinary team including pulmonologists, ...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/RTI.0000000000000191
更新日期:2016-03-01 00:00:00
abstract::Chronic lung disease is a leading cause of morbidity and mortality in the United States. Quantitative techniques for assessing emphysema and related airway disease have been slow to gain acceptance among radiologists, who have traditionally used description of structural changes to evaluate these diseases. This review...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/01.rti.0000142838.60353.b1
更新日期:2004-10-01 00:00:00
abstract::In patients with AIDS, the relatively high incidence of pulmonary tuberculosis places them at risk for more severe esophageal tuberculosis (including fistula formation), and tuberculous esophagitis in the setting of AIDS may be more common than had been thought. Tuberculous esophageal fistulae have long been described...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/00005382-200210000-00008
更新日期:2002-10-01 00:00:00
abstract::Lung cancer screening computed tomographies (CTs) differ from traditional chest CT scans in that they are performed at very low radiation doses, which allow the detection of small nodules but which have a much higher noise content than would be acceptable in a diagnostic chest CT. The technical parameters require a gr...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/RTI.0b013e3182568019
更新日期:2012-07-01 00:00:00
abstract:SUMMARY:A 59-year-old man who underwent chest radiography to exclude pneumonia showed an irregular nodular shadow in the left lower lung. A subsequent CT scan revealed an irregularly shaped soft-tissue mass consisting of two components: a peripheral round mass with spiculated margins and a well-circumscribed branching ...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/00005382-200201000-00014
更新日期:2002-01-01 00:00:00
abstract::Lung cancer is the most common thoracic malignancy caused by exposures at work and in the environment. The most unique thoracic malignancy is mesothelioma, because it is relatively rare and one of only a few neoplasms for which one specific inciting agent-asbestos-has been identified. Based on epidemiologic studies, a...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/00005382-200207000-00003
更新日期:2002-07-01 00:00:00
abstract:PURPOSE:Progressive impairment of hemodynamics in patients with Fontan circulation is common, multifactorial, and associated with decreased quality of life and increased morbidity. We sought to assess hemodynamic differences between patients with preserved (preserved Fontans) and those with impaired circulation (impair...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0000000000000261
更新日期:2017-05-01 00:00:00
abstract::We describe a 58-year-old man with acute lymphoblastic leukemia who developed diffuse left ventricular myocardial calcification during an episode of sepsis seen at computed tomographic imaging. ...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0b013e31806ad289
更新日期:2007-11-01 00:00:00
abstract:PURPOSE:The aim of the study was to compare radiation dose and image quality between the "average" and the "very strong" automatic exposure control (AEC) strength curves. MATERIALS AND METHODS:Images reconstructed with filtered back-projection techniques and radiation dose data of unenhanced helical chest computed tom...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0000000000000177
更新日期:2016-01-01 00:00:00
abstract::Since the publication of the Radiologic Diagnostic Oncology Group Report in 1991, the clinical application of pulmonary magnetic resonance imaging (MRI) in patients with lung cancer has been limited. In contrast, MRI for lung cancer has undergone continuous development, and several promising techniques have been intro...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/RTI.0b013e31828d4234
更新日期:2013-05-01 00:00:00
abstract::The ease of performing computed tomography (CT)-guided radiologic procedures with the patient in the prone position can be compromised by patient discomfort. This is especially true during transthoracic needle aspiration biopsy when sedation or analgesia may interfere with the patient's ability to cooperate. The Glenn...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:
更新日期:1994-10-01 00:00:00
abstract::The aim of this essay was to demonstrate the thoracic venous anatomy as delineated by malpositioned central venous catheters on plain chest radiographs. We therefore used the didactic advantage of clinically inadvertent catheter positions. This approach was chosen to illustrate venous anatomy with plain chest radiogra...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/00005382-199910000-00009
更新日期:1999-10-01 00:00:00
abstract::The clinical fat embolism syndrome consisting of progressive pulmonary insufficiency, cerebral disfunction, and petechiae is rare. Following severe skeletal trauma, fat droplets appear in the circulating blood and embolize the capillaries of the lungs and other organs. Whether fat droplets are of mechanical or chemica...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/00005382-198707000-00005
更新日期:1987-07-01 00:00:00
abstract::We analyzed the spatial structure of contact radiographs of barium-filled pulmonary arteries of rats raised in room air and in two environments that induce pulmonary arterial hypertension (PAH)--hypoxia and hyperoxia. We found that the spatial structure of the pulmonary arteries was fractal in both the control and the...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:
更新日期:1994-01-01 00:00:00
abstract::The fiberoptic bronchoscope became commercially available nearly 20 years ago. This instrument has revolutionized the practice of respiratory medicine by providing the biggest single advance in diagnostic techniques for the chest in recent years. Its use is now widespread, and it has largely superseded the rigid bronc...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/00005382-198704000-00012
更新日期:1987-04-01 00:00:00
abstract::In an analysis of 36 central lung, 54 mediastinal, and 10 central pleural masses, features were sought that would allow accurate localization of the mass by CT. The mass-lung interface was the most useful feature; with few exceptions a mass with a spiculated, nodular, or irregular edge was in the lung, and a mass with...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/00005382-199104000-00008
更新日期:1991-04-01 00:00:00
abstract::Distribution of pulmonary vascularity, as imaged on the routine chest radiograph, may be used as an accurate and sensitive indicator of underlying pathophysiologic change. The lungs, like most other human organ systems, have extensive reserve capability. Such reserves exist in terms of excess alveolar capacity in the ...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/00005382-198801000-00003
更新日期:1988-01-01 00:00:00
abstract::The increased detection of incidental small pulmonary nodules on multidetector computed tomography has driven attempts to refine the characterization and management of such nodules. A variety of methods have been developed to measure the size and biological activity of nodules to help define their nature, but these ha...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/RTI.0b013e31824f83e1
更新日期:2012-07-01 00:00:00
abstract::It is well known that destruction of the distal capillary bed from extensive fibrosis and honeycombing in the setting of sarcoidosis may lead to pulmonary hypertension. However, we report an unusual manifestation of sarcoidosis where pulmonary hypertension resulted from granulomatous involvement of the pulmonary veins...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0b013e3180437e3f
更新日期:2007-08-01 00:00:00
abstract::Ostium primum, a type of atrial septal defect, occurs at the base of the interatrial septum and is the result of failure of fusion of the septum primum with the endocardial cushions. We describe a case of unrepaired ostium primum atrial septal defect in an adult that was diagnosed with multidetector computed tomograph...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0b013e3181a6d0d2
更新日期:2009-08-01 00:00:00
abstract::Epipericardial fat necrosis is an unusual clinical condition of unknown etiology first reported in the literature in 1957. It presents as an acute onset of chest pain and a well-defined juxtacardiac mass. Computed tomographic findings of this condition demonstrate a fat-attenuation mass that resolves over time. We pre...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/RTI.0b013e3181fa6d7c
更新日期:2011-11-01 00:00:00
abstract:PURPOSE:We surveyed the members of the Society of Thoracic Radiology regarding their interpretation of and management decision for small pulmonary nodules on computed tomography. We then compared their responses with the published guidelines set forth by the Fleischner Society. MATERIALS AND METHODS:A survey consistin...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0b013e3181d73a78
更新日期:2011-02-01 00:00:00
abstract:PURPOSE:Cardiac fluorine-18-fluorodeoxyglucose (FDG) uptake is known to be variable in fasting oncologic positron emission tomography computed tomography studies. Increased posterolateral and basal FDG activity have been reported with the basal pattern ascribed to radiation injury. The purpose of this study was to inve...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0b013e3182176675
更新日期:2012-07-01 00:00:00
abstract::The current Dana Point Classification system (2009) distinguishes elevation of pulmonary arterial pressure into pulmonary arterial hypertension (PAH) and pulmonary hypertension. Fortunately, PAH is not a common disease. However, with the aging of the First World's population, heart failure has become an important outc...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/RTI.0b013e31828d5c48
更新日期:2013-05-01 00:00:00