Final answer:
MRI (Magnetic Resonance Imaging) would be crucial for a study on morphological metrics of glioblastoma imaging abnormalities as biomarkers of prognosis.
Step-by-step explanation:
The type of medical imaging that might be crucial for a study on morphological metrics of glioblastoma imaging abnormalities as biomarkers of prognosis is MRI (Magnetic Resonance Imaging).
MRI uses a magnetic field and radio waves to create detailed images of the brain and other parts of the body. It provides high-resolution images that can help in detecting and analyzing abnormalities in the brain, such as glioblastomas.