09 September 2020 : Clinical Research
Echo-Tracking Technique in Ultrasonography Can Monitor Changes in Carotid Artery Elastic Function at Early Stage of Intensity-Modulated Radiation Therapy for Nasopharyngeal Carcinoma
Wei Han12BDE, Junjie Liu3BC, Zhijie Liu1BEF, Xiaodong Zhu1AFG*DOI: 10.12659/MSM.926260
Med Sci Monit 2020; 26:e926260
Table 1 Changes in conventional ultrasound values during radiotherapy.
| Time (week) | IMT (mm) | RI | PI | S/D | Ds (mm) | Dd (mm) |
|---|---|---|---|---|---|---|
| 0 | 0.69±0.13 | 0.67±0.11 | 1.36±0.23 | 3.59±0.62 | 7.48±1.03 | 7.03±0.68 |
| 2 | 0.68±0.15 | 0.70±0.12 | 1.36±0.24 | 3.64±0.58 | 7.46±0.85 | 7.06±0.75 |
| 4 | 0.71±0.11 | 0.70±0.05 | 1.38±0.18 | 3.62±0.64 | 7.50±0.76 | 7.05±0.53 |
| 6 | 0.73±0.15 | 0.71±0.07 | 1.40±0.21 | 3.61±0.39 | 7.49±1.14 | 7.08±1.06 |
| 18 | 0.77±0.128* | 0.72±0.13 | 1.41±0.16 | 3.62±0.44 | 7.54±0.87 | 7.11±0.85 |
| 30 | 0.89±0.20* | 0.75±0.12* | 1.43±0.24 | 3.64±0.51 | 7.56±0.95 | 7.12±0.74 |
| IMT – arterial intima-media thickness; RI – resistance index; PI – pulsatility index; S/D – systolic diastolic ratio; Ds – systolic inner diameter; Dd – diastolic inner diameter. * Significant difference compared with that before radiotherapy | ||||||