22. European Stroke Conference 218 Vascular imaging Carotid ultrasound - two techniques to measure carotid intima media thickness M. Ring1, M.J. Eriksson2, K. Caidahl3 Karolinska Institutet, Department of Molecular Medicine and Surgery, Section of Clinical Physiology, Stockholm, SWEDEN1, Karolinska Institutet, Department of Molecular Medicine and Surgery, Section of Clinical Physiology, Stockholm, SWEDEN2, Karolinska Institutet, Department of Molecular Medicine and Surgery, Section of Clinical Physiology, Stockholm, SWEDEN3 Background: Increased carotid intima media thickness (cIMT) represents an early stage of athero-sclerosis. We wanted to compare two techniques measuring cIMT by ultrasound, a semi-automated cIMT detection algorithm by General Electric (GE), (General Electric, Horten, Norway) and an au-tomated technique by Artery Measurement Software (AMS). Methods: Carotid ultrasound recordings were obtained on 99 subjects without known carotid disease using a Vivid 7 (GE) with 8 MHz transducer. The far wall cIMT was evaluated 1-1.5 cm proximal to the carotid bulb. Diastolic images (ECG-R-wave) were stored digitally on Image Vault 5.0 system (GE). Six representative cIMT images from left (L) and right (R) common carotid artery was anal-ysed using a semi-automated GE and an automated AMS software. Results: The subjects had a mean age of 54.4±8.9 years. Systolic- and diastolic blood pressure; 120±13 mmHg and 76±8 mmHg. There was a strong correlation between GE and AMS for cIMT L, r=0.95, p=0.0001 and for cIMT R, r=0.93, p=0.0001. AMS measured slightly higher cIMT than GE. cIMT L values were for GE 0.65±0.12 mm and for AMS 0.69±0.13 mm; cIMT R was for GE 0.64±0.12 mm and for AMS 0.68±0.14 mm, all p<0.001. The coefficients of variation between GE and AMS were for cIMT L 6.6% and for cIMT R 7.7%. Conclusions: The methods correlated well with a good variability. We suggest that cIMT can be measured interchangeably with the two techniques, at least in the clinical setting. Tab : EEG findings in 39 vascular epilepsy patients Ictal EEG in 2 pts Frontal , F-T discharge of reluctant theta waves spread diffusely within a few sec. 2 patients or 5% Ictal- Interictal EEG continuum in 4 pts Right Frontal dominated PLEDS 4 patients or 10% Interictal in 31 pts Anterior bilateral, unilaterally predominated IEDs in 16 patients (41%) Focal IEDs in 9 pts (23%) Anterior / posterior bilateral, to diffu-se IEDs in 6 pts (16%) Unrealized in 2 pts (5%) 400 © 2013 S. Karger AG, Basel Scientific Programme Graphic 1. Graphic 2.
Karger_ESC London_2013
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