Limits...
Sonography guided percutaneous radiofrequency ablation of hepatocellular carcinoma: effect of cooperative training on the pretreatment assessment of the operation's feasibility.

Kim MJ, Lim HK, Choi D, Lee WJ, Rhim HC, Kim S - Korean J Radiol (2008 Jan-Feb)

Bottom Line: No significant difference in the feasibility rates was observed.The feasibility rates of each observer for group I were 71% (observer 1), 77% (observer 2) and 70% (observer 3) and those for group II were 73%, 76% and 69%, respectively.We found moderate interobserver agreement for all observers before cooperative training and a good agreement after training.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Korea University Anam Hospital, Seoul, Korea.

ABSTRACT

Objective: The aim of this study is to investigate the effects of cooperative training on the pretreatment assessment of the feasibility to perform Ultrasonography (US) guided percutaneous radiofrequency ablation for patients afflicted with hepatocellular carcinoma.

Materials and methods: In our prospective study, 146 patients with 200 hepatocellular carcinomas were referred for radiofrequency ablation after triage by hepatologists. Three radiologists with different levels of experience performed the planning US before (group I) and after (group II) cooperative training, to evaluate whether radiofrequency ablation was feasible. The feasibility rates considered eligible according to our criteria were evaluated. In addition, we analyzed the reasons for the lack of feasibility were analyzed. The interobserver agreement for the assessment of feasibility before and after training was also calculated.

Results: The overall feasibility rates for both groups was 73%. No significant difference in the feasibility rates was observed. The feasibility rates of each observer for group I were 71% (observer 1), 77% (observer 2) and 70% (observer 3) and those for group II were 73%, 76% and 69%, respectively. In the tumors (n = 164) considered ineligible, the two most common causes for refraining from performing radiofrequency ablation included non-visualization of the tumor (62%) and the absence of a safe route for the percutaneous approach (38%). We found moderate interobserver agreement for all observers before cooperative training and a good agreement after training.

Conclusion: Although the cooperative training did not affect the feasibility rate of each observer, it improved the interobserver agreement for assessing the feasibility of performing US guided radiofrequency ablation, which may reduce unnecessary admission or delayed treatment.

Show MeSH

Related in: MedlinePlus

The histogram shows the feasibility rates assessed by the three observers with different levels of experience to perform radiofrequency ablation in liver tumors. No statistical difference in feasibility rates between the two groups before and after cooperative training was observed (GEE test, p>0.05).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC2627177&req=5

Figure 1: The histogram shows the feasibility rates assessed by the three observers with different levels of experience to perform radiofrequency ablation in liver tumors. No statistical difference in feasibility rates between the two groups before and after cooperative training was observed (GEE test, p>0.05).

Mentions: The overall feasibility rate judged by the proportion of the tumors considered eligible for US guided percutaneous radiofrequency ablation by all three observers (Figs. 1, 2), was 73% (436/600). The feasibility rates of each observer for group I were 71% (observer 1; 71/100), 77% (observer 2; 77/100) and 70% (observer 3; 70/100) whereas, for group II were 73% (observer 1; 73/100), 76% (observer 2; 76/100) and 69% (observer 3; 69/100), respectively. There was no significant difference in the feasibility rates between the two groups (GEE test, p>0.05).


Sonography guided percutaneous radiofrequency ablation of hepatocellular carcinoma: effect of cooperative training on the pretreatment assessment of the operation's feasibility.

Kim MJ, Lim HK, Choi D, Lee WJ, Rhim HC, Kim S - Korean J Radiol (2008 Jan-Feb)

The histogram shows the feasibility rates assessed by the three observers with different levels of experience to perform radiofrequency ablation in liver tumors. No statistical difference in feasibility rates between the two groups before and after cooperative training was observed (GEE test, p>0.05).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2627177&req=5

Figure 1: The histogram shows the feasibility rates assessed by the three observers with different levels of experience to perform radiofrequency ablation in liver tumors. No statistical difference in feasibility rates between the two groups before and after cooperative training was observed (GEE test, p>0.05).
Mentions: The overall feasibility rate judged by the proportion of the tumors considered eligible for US guided percutaneous radiofrequency ablation by all three observers (Figs. 1, 2), was 73% (436/600). The feasibility rates of each observer for group I were 71% (observer 1; 71/100), 77% (observer 2; 77/100) and 70% (observer 3; 70/100) whereas, for group II were 73% (observer 1; 73/100), 76% (observer 2; 76/100) and 69% (observer 3; 69/100), respectively. There was no significant difference in the feasibility rates between the two groups (GEE test, p>0.05).

Bottom Line: No significant difference in the feasibility rates was observed.The feasibility rates of each observer for group I were 71% (observer 1), 77% (observer 2) and 70% (observer 3) and those for group II were 73%, 76% and 69%, respectively.We found moderate interobserver agreement for all observers before cooperative training and a good agreement after training.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Korea University Anam Hospital, Seoul, Korea.

ABSTRACT

Objective: The aim of this study is to investigate the effects of cooperative training on the pretreatment assessment of the feasibility to perform Ultrasonography (US) guided percutaneous radiofrequency ablation for patients afflicted with hepatocellular carcinoma.

Materials and methods: In our prospective study, 146 patients with 200 hepatocellular carcinomas were referred for radiofrequency ablation after triage by hepatologists. Three radiologists with different levels of experience performed the planning US before (group I) and after (group II) cooperative training, to evaluate whether radiofrequency ablation was feasible. The feasibility rates considered eligible according to our criteria were evaluated. In addition, we analyzed the reasons for the lack of feasibility were analyzed. The interobserver agreement for the assessment of feasibility before and after training was also calculated.

Results: The overall feasibility rates for both groups was 73%. No significant difference in the feasibility rates was observed. The feasibility rates of each observer for group I were 71% (observer 1), 77% (observer 2) and 70% (observer 3) and those for group II were 73%, 76% and 69%, respectively. In the tumors (n = 164) considered ineligible, the two most common causes for refraining from performing radiofrequency ablation included non-visualization of the tumor (62%) and the absence of a safe route for the percutaneous approach (38%). We found moderate interobserver agreement for all observers before cooperative training and a good agreement after training.

Conclusion: Although the cooperative training did not affect the feasibility rate of each observer, it improved the interobserver agreement for assessing the feasibility of performing US guided radiofrequency ablation, which may reduce unnecessary admission or delayed treatment.

Show MeSH
Related in: MedlinePlus