Particle (500-700) and coil embolize the superior rectal (and sometimes middle rectal) arteries. Inferior rectal arteries arise from internal pudendal and go to skin, don’t embolization them. Embolize distal! Past Sudeck’s point. - Sudeck's critical point at the rectosigmoid junction is described as **the point of origin of the last sigmoid arterial branch, originating from the inferior mesenteric artery (IMA)** ![[IMG_3466.png]] ![[IMG_3456.png]] ![[IMG_3457.png]] ![[IMG_3459.png]] ![[IMG_3460.png]] ![[IMG_3461.png]] ![[IMG_3463.png]] ![[IMG_3465.png]]