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Comparison of Doppler and CT Angiography as a Predictor of Healing Diabetic Foot Ulcers  

Park, Doug-John (Department of Plastic Surgery, Korea University, College of Medicine)
Kim, Hyon-Surk (Department of Plastic Surgery, Korea University, College of Medicine)
Han, Seung-Kyu (Department of Plastic Surgery, Korea University, College of Medicine)
Kim, Hee-Young (Department of Biostatistics, Korea University, College of Medicine)
Chun, Kyung-Wook (Department of Plastic Surgery, Korea University, College of Medicine)
Kim, Woo Kyung (Department of Plastic Surgery, Korea University, College of Medicine)
Publication Information
Archives of Plastic Surgery / v.35, no.5, 2008 , pp. 495-500 More about this Journal
Abstract
Purpose: Adequate tissue oxygenation is considered as an essential factor for wound healing. In the non-diabetic population, an uncompromised macrocirculation generally leads to adequate tissue oxygenation. On the contrary, the macrocirculation in diabetic patients may not correlate with tissue oxygenation because of structural changes in the capillary basement membrane. Nevertheless, many medical professionals in Korea rely on macrocirculation evaluation when predicting wound healing potential of the diabetic ulcers. The purpose of this study is to compare reliability of two common macrocirculation assessment methods, Doppler probing and CT angiography, on tissue oxygenation in diabetic foot patients. Methods: Doppler and CT angiography scores were given according to the patency of the anterior and posterior tibial arteries. Tissue oxygenation was measured by transcutaneous partial oxygen tension($TcpO_2$). Doppler and CT angiography scores were statistically analyzed against $TcpO_2$ values. Sixty-eight diabetic foot ulcer patients were included in this study. Results: The test was carried out on Doppler score and $TcpO_2$ variables displayed a p-value of 0.0202, and concluded that the two variables were statistically dependent. The test used to determine for linear trends between Doppler scores and $TcpO_2$ variables displayed a p-value of 0.0149, displaying statistical linear trend between the two variables. On the contrary, the tests between CT angiography scores and $TcpO_2$ variables showed p-values of 0.1242 and 0.6590, that means no correlation between CT angiography and $TcpO_2$ scores. Conclusion: Doppler probing is more reliable than CT angiography in predicting tissue oxygenation of diabetic foot ulcers.
Keywords
Diabetic foot; Tissue oxygenation; Doppler; CT angiography;
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