الفهرس 
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Abstract
Diabetes mellitus is a growing global problem. One of the major debilitating complications of diabetes is diabetic foot infection. Several risk factors affecting diabetic foot infection include:- peripheral sensory neuropathy, foot deformity, trauma and improperly fitted shoes, callus, history of prior ulcers and amputation, prolonged elevated pressures, uncontrolled hyperglycemia, duration of diabetes, chronic renal disease.
The present study was done to evaluate the role of MDCTA in evaluation of vasculature in diabetic in patients with foot infection.
The current study included 10 diabetic patients referred to Radiology department, Alexandria University Hospital. Most of the patients were males represent (80%), the age of these patients ranged between 44 and 65 years. All patients will be subjected to Doppler ultrasonography and MDCT study.
All patients were type two diabetes mellitus with different disease duration (4 months to 18 years) with a mean duration 10.13+_5.12, seven were hypertensive, nine had coronary heart disease, six had associated (current or past )history of smoking.All patients had uncontrolled hyperglycemia with mean level 253.20 ± 87.49 mg/dl.
All patients had a unilateral complaint except one presented with bilateral toe nail infection. Right sided affection was found in three patients and left sided in six patients.
The studied patients were categorized according to ABI to according to (ACC/AHA) six of the presented limbs had (mild to moderate PAD), five of the presented had (sever PAD).
The clinical presentation included rest pain in one patient, intermittent claudication pain in five patients, minor tissue loss ”ulceration” in four patients, major tissue loss ”two with heel gangrene & two with ”toe gangrene”.Some patients presented with more than the one of the above mentioned complaints
Two of the patients had previous leg ulceration. Three patients had previous minor amputation (toe amputation).One patient underwent bilateral iliac stenting and another patient underwent aorto-femoral bypass graft.
There were five patients with toe affection. One of these patients presented with bilateral toe infection, and other patient presented with left big toe and left heel gangrene, two with unilateral complaint on the left foot. Three other patients presented with heel affection, one patient with right heel gangrene, and the other two patients with left heel ulcer. Two patients presented with dorsal foot ulceration, one on the right lower limb, and the other on the left lower limb. One patient with lateral malleolar affection and one patient with affection of plantar foot aspect.
In the present study among patients with toe affection, two had poor dorsal vascularity, one had poor plantar vascularity, and a case of bilateral toe infection had good both plantar & dorsal vascularity. Among patients with heel affection, two cases with poor plantar vascularity, and one case with poor dorsal& plantar vascularity. The two patients with dorsal aspect of the foot infection, one had poor dorsal vascularity and the other had poor both dorsal& plantar vascularity. The patient with infection of plantar aspect of the foot had good both plantar& dorsal vascularity. The patient with lateral malleolar affection had poor plantar & dorsal vascularity.