The purpose of this study is to investigate whether F-18 FLT PET/CT is useful in early response assessment of induction chemotherapy in acute myeloid leukemia patients.
Assessment of treatment response in AML is very important to determine the next treatment. Standard treatment of AML begins with induction chemotherapy. NCCN guideline recommend to assess the treatment response via bone marrow examination approximately 7-10 days after completion of induction chemotherapy. However, the possibility of sampling error and risks of infection and bleeding are the limitation of bone marrow biopsy. F-18 fluorodeoxythymidine (FLT) is a radiopharmaceutical for PET, reflecting the proliferation of the cell. F-18 FLT is trapped after phosphorylation by thymidine kinase1, whose expression is increased in replicating cells. There have been several studies that reported F-18 FLT PET could measure health and proliferation of the bone marrow. The aim of this study is to evaluate if F-18 FLT PET/CT is suitable for early response assessment of induction chemotherapy in acute myeloid leukemia patients.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
10
All PET/CT scans were performed using a hybrid PET/CT scanner (Gemini TF 64 with Astonish TF, Philips). F-18 FLT (2.96 MBq/kg) in 2-5 mL of normal saline was injected intravenously. One hour after FLT injection, CT began at the vertex and progressed to the upper thigh (120 kVp, 100 mA and 4 mm slice thickness). PET emission data were acquired immediately for 1 min at each bed position followed. The CT data were used for attenuation correction. Images were reconstructed using a standard ordered-subset expectation maximization algorithm with 3 iterations and 33 subsets.
St. Vincent's Hospital
Suwon, Gyenggi-do, South Korea
Value of FLT PET/CT in early response assessment of induction chemotherapy in acute myeloid leukemia
Correlation between the FLT PET/CT findings on day 8-12 after start of treatment with the result of bone marrow biopsy which is done 4-6 wks after completion of induction chemotherapy
Time frame: 4-6 wks after completion of induction chemotherapy
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.