Recent Advances in Pulmonary Imaging: Advances In Computed Tomography HRCT Scans
A large, surgically proven series of 163 patients found that malignant neoplasms enhanced significantly more (mean, 40 Houndsfield units [HU]) than granulomas or benign neoplasms (mean, 12 HU)....
View ArticleRecent Advances in Pulmonary Imaging: Small Airways Disease
Small Airways Disease PFT measurements of small airways function are highly variable, and their use is limited. Furthermore, virtually all measures of airway function are global tests that cannot...
View ArticleRecent Advances in Pulmonary Imaging: Constrictive Bronchiolitis
Constrictive (Obliterative) Bronchiolitis An example of the important use of combined inspiratory and expiratory HRCT scans to detect small airways disease is the detection of constrictive...
View ArticleRecent Advances in Pulmonary Imaging: Virtual Bronchoscopy
Virtual Bronchoscopy It has been reported that axial CT is as accurate as fiberoptic bronchoscopy (FOB) for evaluation of central airways, with the exception of very small mucosal abnormalities (< 3...
View ArticleRecent Advances in Pulmonary Imaging: Multi-detector Row CT
Multi-detector Row CT Multi-detector row CT represents a recent advance in helical CT technology. The Lightspeed CT (GE Medical Systems) mentioned earlier is currently capable of acquiring four...
View ArticleRecent Advances in Pulmonary Imaging: PET
Despite the many recent technological advances made in CT scans and MRI of the chest, these modalities continue to show some limitations in the following specific settings: in the SPN; after extensive...
View ArticleRecent Advances in Pulmonary Imaging: Advanced cancer
Theoretically, the sensitivity of PET may be low in lesions < 1 to 1.5 cm in diameter, but, in general, false-negative results are considered rare. The accuracy of PET scans in characterizing SPNs...
View ArticleRecent Advances in Pulmonary Imaging: FDG-PET
Multiple studies have shown that FDG-PET is more sensitive and specific than CT in detecting stages N2 and N3 disease, with some false-positive results due to inflammatory adenopathy, usually related...
View ArticleRecent Advances in Pulmonary Imaging: Digital Imaging and Computer-Aided...
Digital Imaging and Computer-Aided Diagnosis Digital Techniques Rapid advances in electronics and computer technology over the past 20 years have created new possibilities for imaging with x rays....
View ArticleRecent Advances in Pulmonary Imaging: Energy Subtraction Radiography
Energy Subtraction Radiography A further advance in digital chest radiography is dual energy subtraction (ES) radiography. Here, instead of a single storage phosphor plate, two plates are used with a...
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