[Latar Belakang: Carotid stiffness (CS) merupakan perubahan fungsional padaarteri karotis akibat aterosklerosis. Diabetes mellitus tipe 2 (DMT2) akanmempercepat dan memperburuk aterosklerosis sehingga meningkatkan risikokejadian kardiovaskular. Sampai saat kini belum ada data di Indonesia tentang CSpada pasien penyakit jantung koroner (PJK) stabil dengan DMT2 yangmenggunakan sistem otomatis echotracking ultrasound berbasis frekuensi radio.Penelitian ini bertujuan untuk membandingkan CS pada pasien PJK stabil dengandan tanpa DMT2.Metode: Comparative cross-sectional antara kelompok pasien PJK stabil dengandan tanpa pasien DMT2. Pemeriksaan CS dilakukan dengan posisi pasienberbaring telentang secara non-invasif pada 1 cm sebelum bulbus arteri karotiskiri dan kanan menggunakan automatic echotracking radiofrequency-basedultrasound dengan probe linear 3-13 MHz. Pengukuran CS dilakukan sebanyakenam kali pada masing-masing sisi arteri karotis dengan nilai tertinggi reratacarotid Pulse Wave Velocity (car-PWV) sebagai nilai CS individu.Hasil: Dari total 42 pasien (21 pasang) yang diperiksa didapatkan nilai rerata car-PWV pasien PJK stabil dengan DMT2 lebih tinggi dibandingkan pasien PJK stabiltanpa DMT2 (9,8±1,3m/s vs 6,7±1,3m/s, p< 0,001).Kesimpulan: Nilai carotid stiffness pasien PJK stabil dengan DMT2 lebih tinggidibandingkan pasien PJK stabil tanpa DMT2.;Background: Carotid stiffness (CS) represents the functional changes in carotidarteries due to atherosclerosis. Progression of atherosclerosis was moreaccelerated in type 2 diabetes mellitus (T2DM) compared to non-diabetic patient,thus increasing the risk of cardiovascular events. Until now there is no data of CSin stable coronary artery disease (CAD) with T2DM in Indonesia using automaticechotracking radiofrequency-based ultrasound. The aim of this study was tocompare CS in stable CAD with and without T2DM patient.Method: Comparative cross-sectional between group of stable CAD with andwithout T2DM patients. CS was measured in patient lying down non-invasively at1 cm proximal to bulbus of the left and right carotid artery usingautomatICechotracking radiofrequency-based ultrasound system, 3-13 MHz linearprobe. The highest mean carotid pulse wave velocity (car-PWV) value of sixmeasurements of both side was used as an individual CS.Result: Total 42 patients (21 pairs) was examined. Mean value of car-PWV stableCAD with T2DM patient is higher than stable CAD without T2DM patient (9.81.3 m/s vs. 6.7 1.3 m/s, p<0.001)Conclusion: Carotid stiffness value of stable CAD with T2DM patient is higherthan stable CAD without T2DM patient.;Background: Carotid stiffness (CS) represents the functional changes in carotidarteries due to atherosclerosis. Progression of atherosclerosis was moreaccelerated in type 2 diabetes mellitus (T2DM) compared to non-diabetic patient,thus increasing the risk of cardiovascular events. Until now there is no data of CSin stable coronary artery disease (CAD) with T2DM in Indonesia using automaticechotracking radiofrequency-based ultrasound. The aim of this study was tocompare CS in stable CAD with and without T2DM patient.Method: Comparative cross-sectional between group of stable CAD with andwithout T2DM patients. CS was measured in patient lying down non-invasively at1 cm proximal to bulbus of the left and right carotid artery usingautomatICechotracking radiofrequency-based ultrasound system, 3-13 MHz linearprobe. The highest mean carotid pulse wave velocity (car-PWV) value of sixmeasurements of both side was used as an individual CS.Result: Total 42 patients (21 pairs) was examined. Mean value of car-PWV stableCAD with T2DM patient is higher than stable CAD without T2DM patient (9.81.3 m/s vs. 6.7 1.3 m/s, p<0.001)Conclusion: Carotid stiffness value of stable CAD with T2DM patient is higherthan stable CAD without T2DM patient., Background: Carotid stiffness (CS) represents the functional changes in carotidarteries due to atherosclerosis. Progression of atherosclerosis was moreaccelerated in type 2 diabetes mellitus (T2DM) compared to non-diabetic patient,thus increasing the risk of cardiovascular events. Until now there is no data of CSin stable coronary artery disease (CAD) with T2DM in Indonesia using automaticechotracking radiofrequency-based ultrasound. The aim of this study was tocompare CS in stable CAD with and without T2DM patient.Method: Comparative cross-sectional between group of stable CAD with andwithout T2DM patients. CS was measured in patient lying down non-invasively at1 cm proximal to bulbus of the left and right carotid artery usingautomatICechotracking radiofrequency-based ultrasound system, 3-13 MHz linearprobe. The highest mean carotid pulse wave velocity (car-PWV) value of sixmeasurements of both side was used as an individual CS.Result: Total 42 patients (21 pairs) was examined. Mean value of car-PWV stableCAD with T2DM patient is higher than stable CAD without T2DM patient (9.81.3 m/s vs. 6.7 1.3 m/s, p<0.001)Conclusion: Carotid stiffness value of stable CAD with T2DM patient is higherthan stable CAD without T2DM patient.]