Noninvasive Tissue Characterization of Lung Tumors Using Integrated Backscatter Intravascular Ultrasound An Ex Vivo Comparative Study With Pathological Diagnosis

摘要

BACKGROUND: Endobronchial ultrasonography (EBUS) facilitates a lung cancer diagnosis. However, qualitative tissue characterization of lung tumors is difficult using EBUS. Integrated backscatter (IBS) is an ultrasound technique that calculates the power of the ultrasound signal to characterize tissue components in coronary arteries. We hypothesized that qualitative diagnosis of lung tumors is possible using the IBS technique. The aim of the present study was to elucidate whether the IBS technique can be used in lung tissue diagnoses.