Table 2. Visualization of the Appendix in Both Groups for Observer One ^a.

	Visualization of Appendix
	No.	First and Second Examinations
		THI	CON
Group 1
Female	46	32	16
Male	18	11	8
Child	26	25	20
Group 2
Female	47	31	15
Male	23	15	6
Child	25	22	23

^aGroup 1: patients imaged first with conventional US, second with THI. Group 2: patients imaged first with THI, second with conventional US. CON: conventional US, THI: tissue harmonic US