PMID- 24791843 OWN - NLM STAT- MEDLINE DCOM- 20150109 LR - 20191112 IS - 2066-8643 (Electronic) IS - 1844-4172 (Linking) VI - 16 IP - 2 DP - 2014 Jun TI - Comparison between the M and XL probes for liver fibrosis assessment by transient elastography. PG - 119-22 AB - OBJECTIVE: Liver stiffness measurement (LSM) using Transient Elastography (TE) for liver fibrosis assessment is difficult to be performed in obese and overweight patients by standard M probe, thus the XL probe was developed. The aim of our paper was to assess the usefulness of the XL probe in daily clinical practice. MATERIAL AND METHOD: Our study included 216 patients (mean BMI 30.1+/-4.1 kg/m2) with chronic hepatopathies, in which paired measurements were made using the M (3.5MHz) and XL (2.5 MHz) probes in the same session. In each patient 10 valid LSM were acquired with each probe, a median was calculated, expressed in kiloPascals (kPa). Unreliable TE measurements were considered: fewer than 10 valid shots; with a success rate (SR) <60% and/or interquartile range interval (IQR) >/=30%. RESULTS: In 127 patients reliable LSM could not be obtained by standard M probe, 10 of them normal weight, 25 of them overweight, and 92 obese. By XL probe reliable measurements were obtained in 80/127(63%) of these patients: 8/10 (80%) of the normal weights, 17/25 (68%) of the overweight and 55/92 (59.8%) of the obese. In 98 patients with reliable M probe measurements, XL probe LSMs were also performed. XL LS values strongly and significantly correlated with those obtained by M probe (Spearman r=0.789, p<0.0001), but were significantly lower [median 6.4 kPa (range 3.1 - 53.8) vs 7.7 kPa (range 3.7-69.1), Wilcoxon paired t test p<0.001)]. CONCLUSION: By using the XL probe, reliable LSM by TE can be obtained in more than 60% of patients with unreliable measurements by M probe. LSM by XL probe are significantly correlated, but lower, than those obtained by M probe. FAU - Sirli, Roxana AU - Sirli R AD - Department of Gastroenterology and Hepatology, "Victor Babes" University and Medicine Timisoara, Romania. roxanasirli@gmail.com. FAU - Sporea, Ioan AU - Sporea I AD - Department of Gastroenterology and Hepatology, "Victor Babes" University and Medicine Timisoara, Romania. FAU - Deleanu, Alexandra AU - Deleanu A AD - Department of Gastroenterology and Hepatology, "Victor Babes" University and Medicine Timisoara, Romania. FAU - Culcea, Laura AU - Culcea L AD - Department of Gastroenterology and Hepatology, "Victor Babes" University and Medicine Timisoara, Romania. FAU - Szilaski, Milana AU - Szilaski M AD - Department of Gastroenterology and Hepatology, "Victor Babes" University and Medicine Timisoara, Romania. FAU - Popescu, Alina AU - Popescu A AD - Department of Gastroenterology and Hepatology, "Victor Babes" University and Medicine Timisoara, Romania. FAU - Danila, Mirela AU - Danila M AD - Department of Gastroenterology and Hepatology, "Victor Babes" University and Medicine Timisoara, Romania. LA - eng PT - Comparative Study PT - Journal Article PL - Romania TA - Med Ultrason JT - Medical ultrasonography JID - 101522985 SB - IM MH - Adult MH - Aged MH - Body Mass Index MH - Elasticity Imaging Techniques/*instrumentation MH - Equipment Design MH - Female MH - Hepatitis B, Chronic/diagnostic imaging MH - Hepatitis C, Chronic/diagnostic imaging MH - Humans MH - Liver/diagnostic imaging MH - Liver Cirrhosis/*diagnostic imaging MH - Male MH - Middle Aged MH - Non-alcoholic Fatty Liver Disease/diagnostic imaging MH - Obesity/diagnostic imaging MH - Overweight/diagnostic imaging MH - Prospective Studies MH - Reproducibility of Results MH - Sensitivity and Specificity MH - *Transducers EDAT- 2014/05/06 06:00 MHDA- 2015/01/13 06:00 CRDT- 2014/05/06 06:00 PHST- 2014/05/06 06:00 [entrez] PHST- 2014/05/06 06:00 [pubmed] PHST- 2015/01/13 06:00 [medline] AID - 10.11152/mu.201.3.2066.162.rs1is2 [doi] PST - ppublish SO - Med Ultrason. 2014 Jun;16(2):119-22. doi: 10.11152/mu.201.3.2066.162.rs1is2.