This study is being done to see how we can prevent problems caused by movement during the MRI scan. Different ways of doing the scan (techniques) will be tested to see if they are practical and can prevent problems related to motion. For example, changes in the timing of the magnetic field and the radio waves will be examined, and at changes in the way a computer is used to process the images. The new techniques will be compared with the techniques that are usually used.

Inclusion Criteria:

• Patients of any age, including males and females, who are being treated in the Department of Pediatrics and are already scheduled to undergo MRI

Exclusion Criteria:

• Anyone who would normally be excluded from undergoing an MRI examination as per Memorial Hospital for Cancer and Allied Diseases Screening Questionnaire for MRI (Appendix A). Subjects with pacemakers or aneurysm clips that are MRI conditional or MRI compatible may enroll in the study if the study is clinically indicated.
• Female patients who are pregnant
• Patients who are unable to comply or complete the MRI exam due to claustrophobia or high levels of anxiety
• Patients at higher risk due to age, frailty, or the emergent nature of their condition
• Patients who are undergoing MRI only of the head, neck or spine

Potential research subjects will be identified by a member of the patient's treatment team, the protocol investigator, or research team at Memorial Sloan-Kettering Cancer Center (MSK). With consultation of the clinical team, the investigator or a consenting professional from the research team will go to the treating physician's clinic to discuss the study and consent the patient in person.

Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.