当前位置： SCI文献检索 > EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING期刊下所有文献 > PET/CT studies of multiple myeloma using (18) F-FDG and (18) F-NaF: comparison of distribution patterns and tracers' pharmacokinetics.

PET/CT studies of multiple myeloma using (18) F-FDG and (18) F-NaF: comparison of distribution patterns and tracers' pharmacokinetics.

Abstract：

OBJECTIVE:The aim of this prospective study is to evaluate the combined use of fluorine-18 fluorodeoxyglucose ((18) F-FDG) and fluorine-18 sodium fluoride ((18) F-NaF) PET/CT in the skeletal assessment of patients with multiple myeloma (MM) and to compare the efficacy of these two PET tracers regarding detection of myeloma-indicative osseous lesions. PATIENTS AND METHODS:The study includes 60 patients with multiple myeloma (MM) diagnosed according to standard criteria. All patients underwent dynamic (dPET/CT) scanning of the pelvis as well as whole body PET/CT studies with both tracers. The interval between the two exams was one day. Sites of focal increased (18) F-FDG uptake were considered as highly suspicious of myelomatous involvement. The lesions detected on the (18) F-NaF PET/CT scans were then correlated with those detected on (18) F-FDG PET/CT, which served as a reference. Moreover, the (18) F-FDG PET/CT results were also correlated with the low-dose CT findings. The evaluation of dPET/CT studies was based on qualitative evaluation, SUV calculation, and quantitative analysis based on a 2-tissue compartment model and a non-compartmental approach. RESULTS:Whole body (18) F-FDG PET/CT revealed approximately 343 focal lesions while (18) F-NaF PET/CT revealed 135 MM-indicative lesions (39 % correlation). CT demonstrated 150 lesions that correlated with those in (18) F-FDG PET/CT (44 % correlation). Six patients demonstrated a diffuse pattern of disease with (18) F-FDG, while 15 of them had a mixed (diffuse and focal) pattern of skeletal (18) F-FDG uptake. A high number of degenerative, traumatic and arthritic disease lesions were detected with (18) F-NaF PET/CT. In three patients with multiple focal (18) F-FDG-uptake, (18) F-NaF PET/CT failed to demonstrate any bone lesion. The dPET/CT scanning of the pelvic area with (18) F-FDG and (18) F-NaF revealed 77 and 24 MM-indicative lesions, respectively. Kinetic analysis of (18) F-FDG revealed the following mean values: SUVaver = 5.1, k1 = 0.37 (1/min), k3 = 0.10 (1/min), VB = 0.06, influx = 0.04 (1/min), FD = 1.28; the respective values for (18) F-NaF were SUVaverage = 10.7, k1 = 0.25 (1/min), k3 = 0.34 (1/min), VB = 0.02, influx = 0.10 (1/min), FD = 1.37. Apart from the correlation between VB of (18) F-FDG and k1 of (18) F-NaF (r = 0.54), no other significant correlation was observed between the two tracers' kinetic parameters. We found a significant correlation between FD and SUVaverage (r = 0.93), FD and SUVmax (r = 0.80), FD and influx ( r = 0.85), as well as between influx and SUVaverage (r = 0.74) for (18) F-FDG. In (18) F-NaF we observed the most significant correlations between FD and SUVaverage (r = 0.97), FD and SUVmax (r = 0.87), and between influx and k1 (r = 0.72). CONCLUSION:The combined use of (18) F-FDG PET/CT and (18) F-NaF PET/CT provides different molecular information regarding the biological processes that take place in a MM osseous lesion. (18) F-FDG PET/CT proved to be a more specific biomarker than (18) F-NaF PET/CT in multiple myeloma skeletal assessment.

journal_name

Eur J Nucl Med Mol Imaging

journal_title

European journal of nuclear medicine and molecular imaging

authors

Sachpekidis C,Goldschmidt H,Hose D,Pan L,Cheng C,Kopka K,Haberkorn U,Dimitrakopoulou-Strauss A

doi

10.1007/s00259-014-2721-y

subject

Has Abstract

pub_date

2014-07-01 00:00:00

pages

1343-53

issue

eissn

1619-7070

issn

1619-7089

journal_volume

pub_type

杂志文章

在线工具

PET/CT studies of multiple myeloma using (18) F-FDG and (18) F-NaF: comparison of distribution patterns and tracers' pharmacokinetics.