Abstract
etiologies in which TE measurements were made either with the M (3.5MHz) probe or with XL (2.5MHz) between January 2012 and October 2014. In patients in which reliable measurements could not be obtained by M probe, XL measurements were performed in the same session. In each patient 10 valid LSM were acquired with each probe, a median was calculated expressed in kiloPascals (kPa). Reliable measurements were defined as: median value of 10 valid LSM with a success rate (SR) ≥60% and an interquartile range interval (IQR) <30%. Unreliable TE measurement were considered the following situations: fewer than 10 valid shots; SR <60% and/or IQR ≥30%. Results: A total of 2046 patients were examined, 1156 (56.5%) overweight and 890 (43.5%) obese. In the 1156 overweight patients reliable LSM were obtained in 979 (84.7%) cases: in 729 (63.1%) by the standard M probe and in 250 (21.6%) by the XL probe. In the 890 obese patients, reliable measurements were obtained in 744 patients (83.6%), in 165 (18.5%) by the M probe, and in 522 (58.6%) by using the XL probe. Thus, by using both probes, reliable measurements were obtained in 1723 (84.2%) of the 2046 examined cases. Conclusions: By using both M and XL probes, reliable LSM by TE can be obtained in the majority of the obese and overweight patients (84.2%).
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