Exablate Blood-Brain Barrier Disruption With Carboplatin for the Treatment of rGBM

Inclusion Criteria: * Must be between 18-80 years old * Histologically confirmed glioblastoma * Planned for Carboplatin monotherapy * Be willing and able to provided written informed consent/assent * Tumor progression after first line therapy * Recovered to grade 0 or 1 or pre-treatment baseline from clinically significant toxic effects of prior therapy * Women of childbearing potential is confirmed not pregnant. Male and Female subjects utilize highly effective contraception * Able to communicate verbally Exclusion Criteria: * Acute intracranial hemorrhage * Ferrous metallic implanted objects in the skull or brain * Prior toxicity with carboplatin chemotherapy * Women who are pregnant or breastfeeding * Cerebellar spinal cord or brain stem tumor * Known active Hepatitis B or Hepatitis C or HIV * Significant depression not adequately controlled * Cardiac disease or unstable hemodynamics * Severe hypertension * History of a bleeding disorder, coagulopathy or with a history of spontaneous tumor hemorrhage * Active drug or alcohol use disorder * Known sensitivity to gadolinium-based contrast agents * Known sensitivity or contraindications to ultrasound contrast agent or perflutren * Unable to undergo MRI or contraindications to MRI such as non-MRI compatible implanted devices * Difficulty lying supine and still or severe claustrophobia which cannot be managed with medication * Severely impaired renal function * Right to left or bi-directional cardiac shunt * Cranial or systemic infection requiring antibiotics * Known additional malignancy that is progression or require active treatment