Chest sonography in the diagnosis of XXXX : a comparison with MRI angiography and ventilation perfusion scintigraphy.

@entity1 @entity712 @entity75 @entity120 @entity1151 @entity281
AIM: To compare the diagnostic performance of chest sonography, MRI angiography and ventilation/perfusion intigraphy in @entity1151 ( @entity1151 ). METHOD: In a prospective clinical study, 55 @entity1 (41 @entity1 , 14 @entity1 , age 23 - 91 years) with clinical signs of @entity1151 were investigated within 48 hours of the onset of symptoms. The final diagnosis was made by MRI angiography (reference method). RESULTS: @entity1151 was diagnosed in a total of 36 @entity1 . Chest sonography revealed rounded or wedge-shaped @entity75 in 30 @entity1 . On ventilation/perfusion (V/P) scintigraphy, 41 @entity1 had positive V/P scans, but only 23 were of high probability. Chest ultrasound had a positive predictive value of 97 % to diagnose @entity1151 . The sensitivity, specificity, the negative predictive value and accuracy were 81 %, 84 %, 84 % and 82 %, respectively. As 18 @entity1 had inconclusive scans, the diagnostic performance of ventilation/perfusion scintigraphy was poor. The positive predictive value, sensitivity and specificity were 58 %, 42 % and 91 %, respectively. @entity1 in whom @entity1151 was excluded mainly suffered from @entity712 , @entity281 or @entity120 . CONCLUSION: A negative sonographic study cannot rule out @entity1151 with certainty. However, a chest sonography is of acceptable diagnostic value in @entity1 with suspected @entity1151 and may be used as an adjunct or guide to more established methods.
