Abstract #4178

Association of Apparent Diffusion Coefficient with PFS for recurrent Astrocytoma and Generation of Maps to aid in Defining Tumor Pathology

Evan Neill¹, Manisha Dayal¹, Joanna Phillips², Llewellyn Jalbert¹, Soonme Cha¹, Annette Molinaro², Susan Chang², and Sarah Nelson¹

¹Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, United States, ²Neurological Surgery, University of California, San Francisco, San Francisco, CA, United States

Patients with recurrent low-grade Astrocytomas may experience a large variety of clinical disease courses and outcomes. Diffusion MR imaging and its associations with patient and tumor level characteristics provide an opportunity to use images as maps of tumor aggression and therefore prognosis. This study examines the relationships between the Apparent Diffusion Coefficient (ADC), histology and progress free survival in order to develop a colormap that highlights regions of the tumor with more aggressive characteristics. The colormaps provide an easier way for neuro-oncologists and neurosurgeons to interpret ADC images that can aid them in making decisions about how to manage their patients.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.