Table 1:

Arterial involvement with tumor

Tumor VolumeR-CCA (%)R-ECA (%)Other (%)
Patient 1
    X-ray161 cm3100150
    MR-pre10029
    MR-post770
Patient 2R-Vert (%)L-Vert (%)Other (%)
    X-ray212 cm350*3020
    MR-pre83
    MR-post33
Patient 3R-CCA (%)R-ECA (%)Other (%)
    X-ray92 cm3907510
    MR-pre8045
    MR-post5814
Patient 4L-CCA (%)L-ECA (%)Other (%)
    X-ray125 cm3909010
    MR-pre5454
    MR-post00
  • Note:—R-CCA indicates right common carotid artery; R-ECA, right external carotid artery; L-CCA, left common carotid artery; L-ECA, left external carotid artery; R-Vert, right vertebral artery; L-Vert, left vertebral artery.

  • * Complete obliteration of this vessel's territory was not attempted.

  • MR signal void existed in 87% of this tumor; MR data are percentages of visible portion.