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Table 3 Ratings of the essential items from the modified Delphi process

From: Brain computerized tomography reading in suspected acute ischemic stroke patients: what are essentials for medical students?

 

Rating scores

 

9 (Strong agreement)

8 (Agreement)

7 (Agreement)

1. Check patient’s ID

1. Sequential reading from extra-axial to intra-axial

1. Identify skull fracture

2. Mass effect, mid-line shift, or herniation

2. Identify the symmetry of the bilateral hemispheres

2. Identify skull destruction

3. Low density (edematous lesion and recent infarcts)

3. Epidural and subdural space

3. Identify skull mass lesion or osteoblastic lesion

 

4. Lateral ventricles

4. Interhemispheric fissure

 

5. Anterior and posterior horns of lateral ventricles

5. Sylvian fissure

 

6. ACA territory

6. Temporal horns of lateral ventricles

 

7. PCA territory

7. Fourth ventricle

 

8. MCA territory, basal ganglia and thalamus

8. Cerebellopontine angle

 

9. Pons

9. Sella lesion

 

10. Hematoma density

10. Hyperdense MCA sign

 

11. Physiological calcification density

11. Hyperdense BA sign

 

12. Very low density (CSF and old lesions)

12. Veins: Dense sinus signs of CVT

 

13. Identify mass-like lesions

13. Orbital cavity (ophthalmic vein enlargement, orbital mass)

  

14. MCA-ACA border zone

  

15. MCA-PCA border zone

  

16. Temporal lobes

  

17. Mid-brain

  

18. Medulla

  

19. Symmetry, hyperdensity, and hypodensity of the bilateral cerebellar hemispheres.

  

20. Hematoma with blended sign, whirl sign, spot sign, or black hole sign

  

21. Low density mixed with hyper-density (hemorrhagic infarct)

  

22. ABBBC (Air-Blood-Bone-Brain-CSF) mnemonic

  1. ID identification, MCA middle cerebral artery, ACA anterior cerebral artery, PCA posterior cerebral artery, CVT cerebral venous thrombosis, CT computerized tomography, CSF cerebrospinal fluid