18F-FTHA IMAGING OF THE INTESTINAL AND CENTRAL LYMPHATIC SYSTEM

Exclusion Criteria12

• Informed of the investigational nature of this study and able to provide written informed consent and participate in this study in accordance with institutional and federal guidelines prior to study-specific procedures.
• Inclusion (Patient with suspected TD-venous junction obstruction cohort)
• Male and female participants will be ≥ 18 years of age
• Informed of the investigational nature of this study and able to provide written informed consent and participate in this study in accordance with institutional and federal guidelines prior to study-specific procedures.
• Patient with chronic abdominal pain, ascites protein losing enteropathy, as well edema, with clinically suspected obstruction of the TD-venous junction and who are candidates for TD-venous junction plasty and or TD-Venous bypass
• Currently taking medication for cardiac disease, hypertension, hyperlipidemia, diabetes mellitus, heart failure, coronary artery disease, and/or history of cardiac surgery per medical record review and/or self-report
• Known history of liver or kidney disease per medical record review and/or self-report
• Women who are pregnant or breast feeding will not be eligible for this study; a urine pregnancy test will be performed in women of child-bearing potential on the day of each of the PET/CT scans.
• Subjects who report claustrophobia or Inability to tolerate imaging procedures in the opinion of an investigator or treating physician
• Self-reported difficulty with swallowing pills or allergy to components of Ensure Plus
• Patients with a history of medical illness or disorder that in the opinion of an investigator and/or study physician could compromise patient safety or interfere with the collection of imaging data, or ability to complete the study and procedures, will be excluded.
• Participant may not be involved in any other research studies involving ionizing radiation conducted within 1 year of their participation of this study.