• 대한의용생체공학회:의공학회지
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• 제38권3호
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• pp.95-101
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• 2017

In this study, photoplethysmography(PPG) was suggested as a way to replace the ankle-brachial index(ABI) in diagnosing PAD. The method using the PPG was presented for the simplification of the PAD diagnosis method which was used before. And the index related to the health condition of the artery from the PPG measured in both big toes of the subjects through the experiment was drawn. The indexes showing the significant relativeness in the Pearson correlation analysis with the ABI were the stiffness index(SI), reflection index(RI); it was confirmed each of them had the correlation coefficient of 0.688, and 0.637 at p < 0.05. The explanation ability of the linear regression equation derived using ABI, SI and RI was 52.5%. The explanation ability of the secondary curve regression equation derived using ABI, squared SI was 54.7%. It is expected to provide patients with significant results and draw the index associated with PAD by measuring PPG easily in the real life instead of the ambulatory care field.

• Journal of Preventive Medicine and Public Health
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• 제28권2호
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• pp.364-372
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• 1995

말초동맥질환 유병률을 조사하기 위하여 경상북도 경산군 남산면과 진량면 53개 리의 65세 이상 노인 803명을 방문 면담 조사하였다. 조사 도구로는 Edinburgh 파행 설문지를 이용하였다. 더불어, 성별, 연령, 흡연 습관에 관하여 질문하고, 신장과 체중을 측정하여 체질량 지수로 치환하고, 혈압을 측정하였다. 말초동맥질환의 유병률은 9.0%이며 남자는 8.5%, 여자는 9.3%로 성별에 따른 유의한 차이는 없었다. 그리고, 전형적 파행은 3.9%이고, 비전형적 파행은 5.1%이고 증상의 정도를 보면 1도는 4.4%, 2도는 4.6%이었다. 연령에 따른 말초동맥질환의 유병률을 보면 $65\sim69$세는 7.7%, $70\sim74$세는 9.5%, $75\sim79$세는 9.7%, 80세 이상은 9.8%로 연령에 따라 증가하는 경향은 있으나 통계학적 유의성은 없었다. 말초동맥질환의 유병률은 수축기 혈압이 160mmHg 이상군에서는 18.9%로 160mmHg 미만군의 7.9%보다 유의하게 높았고(p<0.05), 체질량 지수가 20미만군에서는 15.1%이고, $20\sim25$ 미만군에서는 10.3%, 25 이상의 비만군에서는 2.8%로 체질량 지수가 증가함에 따라 유병률은 유의하게 감소하였다(p<0.05). 흡연군에서는 8.8%, 비흡연군은 9.0%로 흡연에 따른 말초동맥질환의 유병률의 유의한 차이는 없었다. 따라서 우리나라 농촌지역 노인들에서의 말초동맥 질환의 유병률이 9.0%로 말초동맥질환이 우리나라에서도 중요한 노인보건문제로 추후 이에 대한 연구가 더 필요하다고 생각된다.

• Archives of Plastic Surgery
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• 제39권3호
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• pp.227-231
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• 2012

Background : The ankle brachial pressure index (ABI) is a simple, useful method for diagnosing peripheral artery disease (PAD). Although the ABI is an objective diagnostic method, it has limited reliability in certain scenarios. The aim of the present study was to determine the accuracy and reliability of the toe brachial index (TBI) as a diagnostic tool for detecting stenosis in PAD, associated with normal or low ABI values. Methods : ABI and TBI values were measured in 15 patients with diabetic gangrene who were suspected of having lower extremity arterial insufficiency. The ABI and TBI values were measured using a device that allowed the simultaneous measurement of systolic blood pressure in the upper and lower extremities. In addition, the ABI and TBI values were compared pre- and post-angiography. Results : Patients with an ABI of 0.9-1.3 showed almost no difference between the 2 measurements. The patients with TBI >0.6 had no arterial insufficiency. The patients with TBI <0.6 required vascular intervention with ballooning. After the angiography, the gangrenous wounds decreased in size more rapidly than they did prior to the intervention. Conclusions : Our findings suggest that TBI is the method of choice for evaluating lower limb perfusion disorders. This result requires further studies of TBI in a larger number of patients. Future long-term studies should therefore evaluate the utility of TBI as a means of screening for PAD and the present findings should be regarded as preliminary outcomes.

• Journal of Preventive Medicine and Public Health
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• 제44권6호
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• pp.260-266
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• 2011

Objectives: We evaluated the association between common carotid artery intima-media thickness (CCA-IMT), brachialankle pulse wave velocity (baPWV), carotid plaque, and peripheral arterial disease (PAD) as indicators of macroangiopathy and diabetic retinopathy as an indicator of microangiopathy in type 2 diabetic patients. Methods: We analyzed 605 type 2 diabetic patients registered at a public health center in Korea. Following overnight fasting, venous blood and urine samples were collected and analyzed. The CCA-IMT, levels of carotid plaque, baPWV, and ankle-brachial index (ABI) of the subjects were assessed. We used non-mydriatic fundus photography to diagnose diabetic retinopathy. Multiple logistic regression analyses were used to evaluate the association between macroangiopathy and diabetic retinopathy. CCA-IMT and baPWV were divided into tertiles: CCA-IMT, 0.39 to 0.65 mm, 0.66 to 0.78 mm, and 0.79 to 1.30 mm; baPWV, 9.9 to 15.8 m/s, 15.9 to 18.9 m/s, and 19.0 to 38.0 m/s. Results: The association between baPWV and diabetic retinopathy remained significant after adjustment, with an increasing odds ratio (OR) in the second tertile (OR, 2.41; 95% confidence interval [CI], 1.27 to 4.55) and the third tertile (OR, 4.63; 95% CI, 2.33 to 9.21). No significant differences were observed in carotid plaque, PAD, and each tertile of CCA-IMT. Conclusions: BaPWV was associated with diabetic retinopathy, while CCA-IMT, carotid plaque, and PAD were not. This study suggests that the association between macroangiopathy and microangiopathy may be attributable to functional processes rather than structural processes within the vascular system.

• 대한영상의학회지
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• 제83권5호
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• pp.1032-1045
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• 2022

말초동맥질환은 고령의 환자들에게서 흔하게 발생하며, 하지 동맥 단층촬영 혈관조영술은 말초동맥질환을 발견하고 치료 계획을 세우는데 유용하다. 특히, 이중에너지 단층 촬영을 통해 낮은 kiloelectron volt (이하 KeV) 영상부터 높은 KeV 영상까지 단일 에너지 영상을 재구성하면, 말초동맥질환을 정확하게 평가하는데 도움이 된다. 일반적으로 낮은 KeV 영상은 높은 대조도를 제공해 주지만, 낮은 KeV 영상은 높은 KeV 영상보다 더 심한 잡음을 제공한다는 단점도 있다. 최근에 낮은 KeV 영상에서 잡음을 극복하기 위해 Mono+ 기술이 도입되었다. 따라서, 본 임상 화보에서는 Mono+ 기법으로 시행한 하지동맥 단층촬영 혈관조영술에서의 말초동맥질환의 영상 소견을 보여주며 낮은 KeV 영상과 높은 KeV 영상의 특성이 어떻게 다른지 비교하여 보여주고자 한다. 많은 사례에서, 전체적인 영상의 질과 말초동맥질환을 평가하고자 하는 구간에서의 영상의 질은 모두 높은 KeV에서 더 좋았고, 금속 인공물과 정맥 오염은 높은 KeV 영상에서 감소했다.