腸道掃描其實不會太困難，
要能每次都能找到，不妨由固定的腸道開始。
位於後腹腔的Ascending colon & Descending colon就是很好的標的。
If you try to scan GI tract, fixed structures will be the best targets.
I will alway start my scanning on retroperitoneal loops,
such as ascending & descending colon.
Transverse scan & rest probe on iliac bone then move upward
Then rotate the probe to scan longitudinally
Sometimes you can recognize typical “haustration”
Ascending colon scan demo
