Effect of Operator Experience and Frequency of Procedure Performance on Complication Rate After Ultrasound‐Guided Percutaneous Liver Biopsies

Westheim, Birgitte H.; Aagenæs, Ingegerd; Østensen, Anniken B.; Sanengen, Truls; Almaas, Runar

doi:10.1097/mpg.0b013e3182a0c7a5

Cited by 39 publications

(23 citation statements)

References 32 publications

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“…Westheim and coworkers investigated the impact of operator experience on complication rates following ultrasound‐guided paediatric liver biopsies. They showed a significant effect of operator experience on minor bleeding post procedure, which occurred more frequently in patients who were operated on by less experienced operators, but no effect on major complications . Lee et al evaluated the effect of operator experience on the recurrence of hepatocellular carcinoma (HCC) after primary treatment with radiofrequency ablation (RFA) and found that the risk of HCC recurrence could be significantly decreased when the procedure was performed by an experienced RFA operator …”

Section: Discussionmentioning

confidence: 99%

“…They showed a significant effect of operator experience on minor bleeding post procedure, which occurred more frequently in patients who were operated on by less experienced operators, but no effect on major complications. 9 Lee et al evaluated the effect of operator experience on the recurrence of hepatocellular carcinoma (HCC) after primary treatment with radiofrequency ablation (RFA) and found that the risk of HCC recurrence could be significantly decreased when the procedure was performed by an experienced RFA operator. 10 In keeping with the previous studies on the impact of operator experience on the duration of a procedure, we found that there was decrease in scanning duration with increasing scanning experience in our first three operators.…”

Section: Discussionmentioning

confidence: 99%

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The effect of operator experience on scanning time in ultrasound assessment of the shoulder

et al. 2019

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Introduction There has been a significant increase in ultrasound imaging over the past three decades that has resulted in a strain on imaging departments including in musculoskeletal subspeciality where resources are already stretched to meet targets in United Kingdom (UK) National Health Service (NHS). We performed a retrospective study to assess the effect of operator experience on scanning duration in ultrasound assessment of the shoulder. Method Four different operators (one sonographer and three consultant musculoskeletal radiologists) with experience ranging from 1 to 10 years were included in the study. A total of 100 consecutive shoulder ultrasound examinations were reviewed, with each operator having performed 25 of these scans. Results The scanning duration decreased with increasing experience in operators 1 to 3; however, operator 4, who had the most scanning experience, was found to have a statistically significant longer scanning duration when compared with operator 3, and this reflected the presence of a radiology trainee in operator 4's ultrasound session. Conclusion There is decrease in scanning duration with experience, and this would help for workforce planning and accurate scheduling of ultrasound lists.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The effect of operator experience on scanning time in ultrasound assessment of the shoulder

et al. 2019

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“…Liver biopsy is considered the gold standard method for assessing other structural liver diseases. However, the heterogeneous distribution of fibrosis in Fontan liver disease often results in non-representative biopsy samples [4,[6][7][8][9]; hence, estimating the risk of complication, this invasive procedure is only justified in select cases. Current international recommendations for evaluating these patients are mainly based on expert consensus [3,5].…”

Section: Introductionmentioning

confidence: 99%

Hepatic magnetic resonance T1-mapping and extracellular volume fraction compared to shear-wave elastography in pediatric Fontan-associated liver disease

et al. 2020

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Background Children with Fontan circulation are at risk of developing hepatic fibrosis/cirrhosis. Reliable noninvasive monitoring techniques are lacking or under development. Objective To investigate surrogate indicators of hepatic fibrosis in adolescents with Fontan circulation by evaluating hepatic magnetic resonance (MR) T1 mapping and extracellular volume fraction measurements compared to US shear-wave elastography. Materials and methods We analyzed hepatic native T1 times and extracellular volume fractions with modified Look-Locker inversion recovery. Liver stiffness was analyzed with shear-wave elastography. We compared results between 45 pediatric patients ages 16.7±0.6 years with Fontan circulation and 15 healthy controls ages 19.2±1.2 years. Measurements were correlated to clinical and hemodynamic data from cardiac catheterization. Results MR mapping was successful in 35/45 patients, revealing higher hepatic T1 times (774±44 ms) than in controls (632±52 ms; P<0.001) and higher extracellular volume fractions (47.4±5.0%) than in controls (34.6±3.8%; P<0.001). Liver stiffness was 1.91±0.13 m/s in patients vs. 1.20±0.10 m/s in controls (P<0.001). Native T1 times correlated with central venous pressures (r=0.5, P=0.007). Native T1 was not correlated with elastography in patients (r=0.2, P=0.1) or controls (r = −0.3, P=0.3). Extracellular volume fraction was correlated with elastography in patients (r=0.5, P=0.005) but not in controls (r=0.2, P=0.6). Conclusion Increased hepatic MR relaxometry and shear-wave elastography values in adolescents with Fontan circulation suggested the presence of hepatic fibrosis or congestion. Central venous pressure was related to T1 times. Changes were detected differently with MR relaxometry and elastography; thus, these techniques should not be used interchangeably in monitoring hepatic fibrosis.

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“…Liver parenchyma biopsy is the gold standard for diagnosing fatty liver. However, this procedure only obtains a small portion of the liver, which can cause sampling bias in addition to being an invasive method requiring sedation in young children [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Normal Range of Hepatic Fat Fraction on Dual- and Triple-Echo Fat Quantification MR in Children

Shin

Kim

et al. 2015

PLoS ONE

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ObjectivesTo evaluate hepatic fat fraction on dual- and triple-echo gradient-recalled echo MRI sequences in healthy children.Materials and MethodsWe retrospectively reviewed the records of children in a medical check-up clinic from May 2012 to November 2013. We excluded children with abnormal laboratory findings or those who were overweight. Hepatic fat fraction was measured on dual- and triple-echo sequences using 3T MRI. We compared fat fractions using the Wilcoxon signed rank test and the Bland-Altman 95% limits of agreement. The correlation between fat fractions and clinical and laboratory findings was evaluated using Spearman’s correlation test, and the cut-off values of fat fractions for diagnosing fatty liver were obtained from reference intervals.ResultsIn 54 children (M:F = 26:28; 5–15 years; mean 9 years), the dual fat fraction (0.1–8.0%; median 1.6%) was not different from the triple fat fraction (0.4–6.5%; median 2.7%) (p = 0.010). The dual- and triple-echo fat fractions showed good agreement using a Bland-Altman plot (-0.6 ± 2.8%). Eight children (14.8%) on dual-echo sequences and six (11.1%) on triple-echo sequences had greater than 5% fat fraction. From these children, six out of eight children on dual-echo sequences and four out of six children on triple-echo sequences had a 5–6% hepatic fat fraction. When using a cut-off value of a 6% fat fraction derived from a reference interval, only 3.7% of children were diagnosed with fatty liver. There was no significant correlation between clinical and laboratory findings with dual and triple-echo fat fractions.ConclusionsDual fat fraction was not different from triple fat fraction. We suggest a cut-off value of a 6% fat fraction is more appropriate for diagnosing fatty liver on both dual- and triple-echo sequences in children.

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Effect of Operator Experience and Frequency of Procedure Performance on Complication Rate After Ultrasound‐Guided Percutaneous Liver Biopsies

Cited by 39 publications

References 32 publications

The effect of operator experience on scanning time in ultrasound assessment of the shoulder

The effect of operator experience on scanning time in ultrasound assessment of the shoulder

Hepatic magnetic resonance T1-mapping and extracellular volume fraction compared to shear-wave elastography in pediatric Fontan-associated liver disease

Normal Range of Hepatic Fat Fraction on Dual- and Triple-Echo Fat Quantification MR in Children

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