Does doppler echocardiography inaccurately estimate right ventricular pressure in children with elevated right heart pressure?
DE inaccurately estimates RV pressure in children with elevated right heart pressure. It should not be relied on as the sole method of assessing right heart hemodynamics in children with RV hypertension.
Overall, 75% of the patients failed in regions receiving less than the prescribed dose. All tumors which failed in the high dose region had volume greater than 75 cc. Patients with cervical spine disease had a higher rate of recurrence (10 or 26) and larger tumors (average volume of 102 cc) than those with base of skull disease (16 of 115) with an average volume of 63 cc.