Results: A mean of 6.81 mm of mean deviation of the cerebral midline was obtained for patients who were measured by ultrasound technique and mean of 6.63 mm for patients measured by computerized axial computed tomography. It was correlated by Pearson obtaining a correlation of 0.774 (95% CI) which is signifi cant. Discussion: We propose the measurement of the deviation of the cerebral midline by transcranial ultrasound as a rapid method, at the head of the patient, which generates few costs and can replace the lack of a CT. It can be included as a quick measure to decide on surgical management if there is mass effect, hypertensive skull or neurological targeting and we do not have available tomography. The implication contrary to this meaning is that there must be a previous training of the personnel for the realization of transcranial ultrasound since it is a «dependent» operator. Conclusion: The measurement of the midline by ultrasound and cranial tomography are signifi cantly correlated, so the use of transcranial ultrasound can be an instrument of assessment in case of not having a tomograph, although a larger number is required of studies to be conclusive.