Clinical radiology
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Comparative Study
320-detector row CT angiography for detection and evaluation of intracranial aneurysms: comparison with conventional digital subtraction angiography.
To compare the diagnostic performance of 320-detector row computed tomographic angiography (CTA) with digital subtraction angiography (DSA) for the detection and characterization of intracranial aneurysms. ⋯ 3D CTA is a highly sensitive, specific, and non-invasive imaging method for diagnosis and evaluation of intracranial aneurysms. It also allows for precise depiction of aneurysm morphology. Therefore, 320-detector row CTA may be used as an alternative to DSA as a first-line imaging technique in patients with SAH.
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To assess the accuracy and risk factors for complications of computed tomography (CT)-guided percutaneous core needle biopsy (CNB) for small (≤20 mm) pulmonary lesions. ⋯ CT-guided percutaneous CNB of small (≤20 mm) pulmonary lesions provides high diagnostic accuracy with acceptable complications. A lesion-pleural distance of ≥21 mm and needle-pleural angle of ≥51° are identified as the risk factors for highest pneumothorax rate. In addition, the needle-pleural angle is a novel predictor of pneumothorax. A lesion-pleural distance of ≥21 mm is also identified as a risk factor for the highest bleeding rate.