Vibration response imaging versus perfusion scan in lung cancer surgery evaluation

Abstract

The 2 techniques presented good concordance values. Vibration response imaging shows non-negligible confidence intervals. Vibration response imaging may be useful in preoperative algorithms in patients before lung cancer surgery.

Prediction of postoperative lung function after major lung resection for lung cancer using volumetric computed tomography

“…Likewise, the accuracy in the prediction of postoperative functional values by means of volumetric CT is also greater than that reported for alternative low-cost procedures, such as quantitative breath sound measurement using vibration response imaging. 11,34 In recent years, it has also been proposed to predict postoperative lung function using single-photon emission CT, 10 4-dimensional CT ventilation, 9,35 positron emission tomography/CT, 36 or dynamic contrast-enhanced perfusion magnetic resonance imaging. 12,37 The correlation coefficients between measured postoperative FEV 1 and that determined by these procedures range from 0.81 to 0.99, 9,10,12,38,39 which do not surpass those obtained by volumetric CT, despite requiring more expensive and less-accessible procedures that, in some cases, involve additional radiation for the patient.…”

“…2,6,7 However, the accuracy of these methods varies according to the type of resection performed. 2,8 Among the different alternatives proposed, [9][10][11][12][13][14][15][16][17] chest computed tomography (CT) is particularly interesting, because it is mandatory for the staging of any patient with lung cancer and therefore might provide simultaneous evaluation of operability. With recent advances in technology, multidetector row CT and simulation software (which complete the densitometry analysis with a volumetric analysis) allow for 3-dimensional lung models to be reconstructed, providing more accurate estimations of the different lung volumes.…”