Fig. 5.

Flow diagram showing primary and secondary technique effectiveness rates in this study. At one month follow-up CT, primary technique effectiveness rates was 90% (28/31) in group A, compared to 98% (48/49) in group B (p = 0.29). Among 80 patients, secondary technique effectiveness rates was evaluated in 59 patients who had one year or more of follow-up with CT. Secondary technique effectiveness rates was 79% (19/24) in group A, compared to 91% (32/35) in group B (p = 0.25). Both primary and secondary technique effectiveness rates showed no statistically measurable difference. Group A = abutting diaphragm, group B = non-abutting diaphragm