Table 2 Clinical and radiological data for validation cohort
ID | Risk factor | Symptom | Duration | CT HU in suspected thrombous | CT HU in nonaffected sinuses | CTV findings | Additional imaging findings | Days between CT-CTV |
|---|---|---|---|---|---|---|---|---|
1 | Oral contraception | Headache, vomiting | 4 days | 75 (SSS), 75 (TS) | 44 (TH), 33/38 (SS) | Thrombosed SSS, ISS, TS | 0 | 0 |
2 | 0 | Loss of consciousness | 3 days | 77 (cortical vein) | 55 (TH), 55 (SSS), 51/54 (TS), 54/49 (SS) | Thrombosed cortical vein | 0 | 0 |
3 | 0 | Headache | 10 days | 75 (TH), 78 (SSS), 70/77 (TS), 73/76 (SS) | All affected | Thrombosed SSS, TS, SS | 0 | 0 |
4 | Oral contraception | Headache, vomiting, diarrhea | 2 days | 79 (vein of Labbé) | 51 (TH), 61 (SSS), 55/54 (TS), 51/47 (SS) | Thrombosed vein of Labbé | Focal parenchymal edema (stasis) | 0 |
5 | History of deep venous thrombosis | Headache, unilateral arm weakness | 1 day | 70 (internal cerebral vein) | 45 (TH), 47 (SSS), 55/56 (SS), 55/47 (TS) | Thrombosed internal cerebral vein | Focal parenchymal edema (stasis) | 0 |
6 | Acute lymphatic leukemia | Unilateral arm weakness, loss of consciousness | 1 day | 73 (cortical vein), 70 (SSS) | 39 (TH), 50/46 (TS), 43/55 (SS) | Thrombosed cortical vein and SSS | Parenchymal hemorrhage in right motor area | 0 |
7 | High hematocrit, mutation Factor V Leiden | Seizures | 1 day | 65 (SSS), 68 (internal cerebral vein), 66 (cortical vein) | 49 (TH), 45 (R TS), 50 (R SS) | Massive thrombosis including SSS, L TS, L SS, internal cerebral veins* (*MRI including Phase contrast) | Intraventricular hemorrhage | 1* |
8 | APC | Headache | 6 days | 81 (SSS), 77 (R TS), 88 (R SS) | 56 (TH), 61 (L TS), 57 (L SS) | Thrombosed SSS, R TS, R SS | Parenchymal swelling/general edema | 0 |
9 | 0 | Aphasia | 0 days | 76 (L TS), 77 (L SS) | 55 (TH), 51 (SSS), 58 (R TS), 61 (R SS) | Thrombosed left TS and SS | Parenchymal hemorrhage | 0 |
10 | Cerebral metastases | Headache, confusion | > 30 days | 69 (SS), 20 (R TS) | 36, (TH), 37 (SSS), 39 (LTS), 48 (LSS) | Thrombosed R TS and SS | Cerebral metastasis | 0 |