下肢是人的第二個心臟，周邊動脈疾病若不妥善處理，會有非常高的致死機會。急性周邊動脈疾病所造成的缺血，如果沒有血管腔內手術或是外科繞道手術治療，往往需要截肢治療保命。近年來介入性治療有很大的進步，治療也有很大的改變，先進的鑽磨醫材設備的進步，大大了提升患肢保留的機會，過往在治療前後診斷使用含碘對比劑(iodine contrast medium, ICM)，此含碘化合物所產生的不良反應，特別在慢性腎病患者身上與嚴重過每文體質者來說，受限於治療時對比劑使用的劑量，血管腔內手術(angioplasty)在治療時會受到很大的限制，近些年來數位影像的進步、二氧化碳無毒性、高溶解度沒有過敏反應的(carbon dioxide)特性再度被看重，特別在即將面臨血液透析前的慢性腎病患者，更是很好的一項替代方案，在目前的治療更是不必擔心含碘對比劑量注射上限，病患過敏不良反應，本院在這二氧化碳注射器這方面累積相當的經驗，使手術有更好的預後結果。

The lower limb is the second heart of man. If the peripheral arterial disease is not handled properly, there will be a very high chance of death. Acute peripheral arterial disease ischemic, if there is no endovascular surgery or surgical by-pass, often need amputation to save lives. In recent years, interventional therapy has made great progress, and treatment has also undergone great changes. The advancement of advanced drilling and grinding equipment has increased the chance of retention of the affected limb. In the past, the use of iodine contrast medium (ICM) was diagnosed before and after treatment. The adverse reactions caused by this iodine-containing compound, especially in patients with chronic kidney disease and severe allergies, are limited by the contrast agent during treatment. The dose used, endovascular surgery (angioplasty) will be greatly limited in the treatment, the advancement of digital images in recent years, carbon dioxide non-toxic, high solubility without carbon dioxide characteristics are once again valued, Especially in patients who are facing chronic kidney disease before hemodialysis, it is a very good alternative. In the current treatment, there is no need to worry about the upper limit of iodine contrast dose injection, patients with allergic reactions; this hospital in this carbon dioxide syringe. The cumulative experience of the aspects has made our surgery have better prognostic results.