Fig. 1
From: “Velcro-type” crackles predict specific radiologic features of fibrotic interstitial lung disease
Recording sites selected in the study. Per each side of the chest, two recordings were performed at the lung bases at seven cm below the scapular angle, at both two and five cm from the paravertebral line respectively; another recording was taken from mid chest in correspondence of the fourth or fifth intercostal space, at two cm from the paravertebral line (a). Metallic marks were applied to the posterior chest of the patient and were visible at HRCT (black arrows, (b)