A Pilot Study Of Ga-68-DOTA-TOC Imaging In Participants With Small Bowel Carcinoid Tumors

Inclusion Criteria: * Age ≥ 18 years * Have histologically or cytologically confirmed small bowel carcinoid tumor * Receiving a stable dose of octreotide LAR as a part of a treatment regimen for ≥3months * Presently planned for ongoing octreotide according to current standard of care for at least 18 months (i.e. throughout the study follow-up period). * Presently planned for restaging using contrast-enhanced CT scans at baseline and at least every 6 months, as a part of their standard of care assessments. * The effects of Ga-68-DOTA-TOC on the developing human fetus are unknown. For this reason and because PET imaging agents are known to be teratogenic, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 4 months after completion of Ga-68-DOTA-TOC administration. * Ability to understand and the willingness to sign a written informed consent document. Exclusion Criteria: * Participants who have had radiotherapy within 4 weeks prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier. * Participants with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. * History of allergic reactions to IV contrasts or reactions attributed to compounds of similar chemical or biologic composition to Ga-68-DOTA-TOC used in study. * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. * Pregnant women are excluded from this study because Ga-68-DOTA-TOC have the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to administration of Ga-68-DOTA-TOC to mothers, breastfeeding mothers are also excluded from this study. * Expected lifespan less than 18 months by investigator assessment * Previous hypersensitivity reaction to LAR octreotide * Non-removable non-MR compatible placements including hearing aid or dentures, metal IUD, surgical aneurysm clips, cardiac pacemaker, prosthetic heart valve, neurostimulator, implanted pumps, cochlear implants, metal rods, plates or screws, surgery leaving implanted materials, metal injury to eye, metallic tattoos anywhere on the body, tattoos near the eye and transdermal patches * History of Meniere's disease