TITLE

Clinical implication and prognostic significance of standardised uptake value of primary non-small cell lung cancer on positron emission tomography: analysis of 176 cases

AUTHOR(S)
Al-Sarraf, Nael; Gately, Kathy; Lucey, Julie; Aziz, Rashid; Doddakula, Kishore; Wilson, Lorraine; McGovern, Eillish; Young, Vincent
PUB. DATE
October 2008
SOURCE
European Journal of Cardio-Thoracic Surgery;Oct2008, Vol. 34 Issue 4, p892
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Abstract: Objective: We sought to assess the clinical implication and prognostic significance of maximum standardised uptake value (SUVmax) of primary non-small cell lung cancer (NSCLC) staged by integrated PET-CT. Methods: A retrospective review was carried out on 176 consecutive patients with histologically proven NSCLC who underwent staging with integrated PET-CT prior to curative intent surgical resection. SUVmax of primary NSCLC were measured and correlated with tumour characteristics, lymph node involvement, surgical stage, type of surgical resection and survival following resection. Results: SUVmax was significantly higher in centrally located tumours, tumours ≥4.0cm, squamous cell subtype, poorly differentiated tumours, advanced T stage, advanced nodal stage, pleural invasion, and patients requiring complex surgical resection. SUVmax value of 15 was the best discriminative cut-off value for survival generated by log-rank test. When patients were stratified based on this value, those with SUVmax >15 were more likely to have centrally located tumours, squamous cell subtype, advanced T stage, advanced nodal stage, advanced American Joint Committee on Cancer (AJCC) stage, larger tumour size and required more advanced surgical resections than a simple lobectomy. Overall survival was significantly longer for patients with SUVmax ≤15 than those with SUVmax >15. Furthermore, nodal stage specific survival following resection (i.e. non-N2 and N2) were significantly better in patients with SUVmax ≤15 than SUVmax >15. Conclusion: SUVmax correlates with tumour characteristics, surgical stage and prognosis following resection. SUVmax may be a useful preoperative tool, in addition to other known prognostic markers, in allocating patients with potentially poor prognosis preoperatively to neoadjuvant chemotherapy prior to resection in order to improve their overall survival. Prospective and randomised trials are warranted.
ACCESSION #
34649578

 

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