Abstract:
PURPOSE:To explore the correlation between a septal angle measured on computed tomographic pulmonary angiography (CTPA) and pulmonary vascular resistance (PVR) determined by right heart catheterization in patients with chronic thromboembolic pulmonary hypertension (CTEPH). MATERIALS AND METHODS:Eighty-six patients with CTEPH (54 men, mean age: 53.08±12.43 y) were retrospectively reviewed, and 86 sex-matched and age-matched individuals without pulmonary artery hypertension and pulmonary embolism were used as the control group. All patients with CTEPH underwent CTPA before right heart catheterization. Septal angle was measured on transverse CTPA images as the angle between the interventricular septum and the line joining the midpoint of the sternum to the thoracic vertebral spinous process. Hemodynamic PVR was calculated on the basis of the data from right heart catheterization. RESULTS:Septal angle was 65.27±12.24 degrees and 39.43±9.79 degrees in the CTEPH group and control group, respectively, which was statistically significant (t=18.139, P=0.000). The septal angle correlated positively with PVR (r=0.629, P=0.000). By stepwise linear regression analysis, the septal angle was shown to be the only variable (r=0.578) that was independently associated with PVR levels, leading to the following equation: PVR=21.591×septal angle-374.641. By receiver operating characteristic analysis, septal angle ≥67.55 degrees had a sensitivity of 71.6% and a specificity of 73.4% for predicting PVR≥1000 dyne s/cm with an area under the curve of 0.739±0.055, which was higher than the area under the curve of right ventricular area/left ventricular area (0.627±0.061) and that of transverse diameter of right ventricle/transverse diameter of left ventricle (0.612±0.060). CONCLUSION:The septal angle is a useful tool for estimating PVR in patients with CTEPH.
journal_name
J Thorac Imagingjournal_title
Journal of thoracic imagingauthors
Liu M,Ma ZH,Guo XJ,Wang SK,Chen XY,Yang YH,Wang Cdoi
10.1097/RTI.0b013e3182541142subject
Has Abstractpub_date
2012-09-01 00:00:00pages
325-30issue
5eissn
0883-5993issn
1536-0237journal_volume
27pub_type
杂志文章abstract:OBJECTIVE:The purpose of this study is to determine the prevalence of tracheomalacia (TM) associated with different types of mediastinal aortic vascular anomalies in symptomatic children using paired inspiratory-expiratory multidetector computed tomography (MDCT). MATERIALS AND METHODS:The study group consisted of 15 ...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0b013e31817fbdf7
更新日期:2008-11-01 00:00:00
abstract::Sufficient trauma to the chest can result in injury to the bony thorax and soft tissues of the chest wall, increasing patient morbidity and mortality. Fractured ribs can lacerate the pleura, lung, or abdominal organs. Fractures to upper ribs, clavicle, and upper sternum can signal brachial plexus or vascular injury. P...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/00005382-200004000-00006
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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
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更新日期:2016-03-01 00:00:00
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journal_title:Journal of thoracic imaging
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abstract::The National Lung Cancer Screening Trial (NLST) found a reduction in lung cancer mortality in high-risk patients aged 55 to 74 who were screened with low-dose computed tomography (LDCT) rather than chest x-ray. This reduction was 20% after 6.5 years and 16% after 7.5 years, with a 6.7% reduction in all-cause mortality...
journal_title:Journal of thoracic imaging
pub_type: 评论,杂志文章
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更新日期:2015-01-01 00:00:00
abstract::Adults with congenital heart disease (CHD) represent an increasing population both because anomalies that might have remained undiagnosed in the past are now being diagnosed later in life on imaging and because significant therapeutic advances have resulted in survival to adulthood of patients with complex CHD. In thi...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/RTI.0000000000000051
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abstract::On health examination, a nodular opacity of size of 25 mm was detected in a 54-year-old man. High-resolution computed tomography scans showed irregular-shaped ground glass opacity with bubble-like appearance in the right lung. The low-magnified histological findings after right upper lobectomy demonstrated squamous ce...
journal_title:Journal of thoracic imaging
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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::Metastatic cardiac liposarcoma is rare. A right ventricular liposarcoma metastasis is described in a 46-year-old man, who was admitted with significant shortness of breath and fatigue, and in whom a large lobulated low attenuation mass occupying most of the right ventricular cavity, with extension through the right ve...
journal_title:Journal of thoracic imaging
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journal_title:Journal of thoracic imaging
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更新日期:1998-04-01 00:00:00
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journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:10.1097/00005382-199521000-00012
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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
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journal_title:Journal of thoracic imaging
pub_type: 杂志文章
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journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/00005382-198512000-00011
更新日期:1985-12-01 00:00:00
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journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
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更新日期:1996-01-01 00:00:00
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journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
doi:10.1097/00005382-199101000-00008
更新日期:1991-01-01 00:00:00
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journal_title:Journal of thoracic imaging
pub_type: 杂志文章
doi:
更新日期:1995-01-01 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...
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journal_title:Journal of thoracic imaging
pub_type: 杂志文章
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更新日期:1994-01-01 00:00:00
abstract::Cardiac magnetic resonance (CMR) imaging is a powerful tool for the detection and management of coronary artery disease. Beyond morphology, CMR imaging can probe relevant physiological parameters such as perfusion and function by means of stress testing. This article reviews current applications of CMR stress imaging ...
journal_title:Journal of thoracic imaging
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journal_title:Journal of thoracic imaging
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更新日期:1993-10-01 00:00:00
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journal_title:Journal of thoracic imaging
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doi:10.1097/00005382-199904000-00005
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abstract::Lung transplantation is a well-accepted treatment for numerous lung diseases when medical or surgical therapy is ineffective or unavailable and the patient has a limited life expectancy (usually less than 2 to 3 years). When appropriate, single-lung transplantation is the preferred procedure because of a critical shor...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
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abstract::Hydatid disease is a parasitic infestation caused by the larval stage of a tapeworm of the genus Echinococcus. This report describes an extremely rare complication of echinococcal disease in which severe pulmonary hypertension developed after massive hydatid pulmonary embolism. ...
journal_title:Journal of thoracic imaging
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doi:10.1097/00005382-199904000-00015
更新日期:1999-04-01 00:00:00
abstract::The availability of the less invasive techniques such as CT, MRI, and digital angiography require reexamination of the indications for conventional screen-film aortography. Because of poor image quality, IV digital subtraction angiography should be limited to congenital aortic disease and follow-up cases. Intraarteria...
journal_title:Journal of thoracic imaging
pub_type: 杂志文章,评审
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更新日期:1990-10-01 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
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doi:10.1097/RTI.0b013e3180437e3f
更新日期:2007-08-01 00:00:00
abstract::When natural disasters demolish shelter, destroy sources of clean drinking water, and disrupt the availability of medical care, vast numbers of people are placed at increased risk of disease. The infectious diseases that propagate under these conditions are usually common ones. Occasionally, a natural disaster alters ...
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更新日期:2006-11-01 00:00:00
abstract::Kimura's disease is a rare, chronic inflammatory disease characterized by subcutaneous nodules in the head and neck regions associated with regional cervical lymphadenopathy. Following its recognition as a pathologic entity, numerous reports have been published detailing the pathogenesis, radiologic manifestations, an...
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pub_type: 杂志文章,评审
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abstract::We studied the chest radiographs of 30 patients (39 thoracotomies) after resection of pulmonary nodules with a neodymium-YAG laser. New "nodules" were often visible in the resected areas. These gradually evolved into linear scars with or without a small, nodular component or disappeared. In 11 of 39 thoracotomies, pos...
journal_title:Journal of thoracic imaging
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doi:10.1097/00005382-198904000-00013
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