Contribution of positron emission tomography in pleural disease.
Duysinx, Bernard ; Corhay, Jean-Louis ; Larock, Marie-Paule et al
in Revue des Maladies Respiratoires (2010), 27(8), 47-53
INTRODUCTION: Positron emission tomography (PET) now plays a clear role in oncology, especially in chest tumours. We discuss the value of metabolic imaging in characterising pleural pathology in the light ... [more ▼]
INTRODUCTION: Positron emission tomography (PET) now plays a clear role in oncology, especially in chest tumours. We discuss the value of metabolic imaging in characterising pleural pathology in the light of our own experience and review the literature. BACKGROUND: PET is particularly useful in characterising malignant pleural pathologies and is a factor of prognosis in mesothelioma. Metabolic imaging also provides clinical information for staging lung cancer, in researching the primary tumour in metastatic pleurisy and in monitoring chronic or recurrent pleural pathologies. CONCLUSIONS: PET should therefore be considered as a useful tool in the diagnosis of liquid or solid pleural pathologies. [less ▲]Detailed reference viewed: 39 (3 ULg)
Prognostic value of metabolic imaging in non-small cell lung cancers with neoplasic pleural effusion.
Duysinx, Bernard ; Corhay, Jean-Louis ; Larock, Marie-Paule et al
in Nuclear Medicine Communications (2008), 29(11), 982-6
BACKGROUND: The intensity of the [F]fluorodeoxyglucose (F-FDG) uptake is an independent prognostic indicator in non-small cell lung cancer (NSCLC). We evaluate the relationship between the metabolic ... [more ▼]
BACKGROUND: The intensity of the [F]fluorodeoxyglucose (F-FDG) uptake is an independent prognostic indicator in non-small cell lung cancer (NSCLC). We evaluate the relationship between the metabolic activity of the primary and the pleurisy in T4 NSCLC. METHODS: 25 patients (16 males, nine females, mean age 63 years, performance status 1) with pathology-proven, T4 NSCLC and malignant pleurisy were included. All were treated by a platinum salt-based chemotherapy regimen. Positron emission tomography (F-FDG-PET) was performed before treatment, according to a routine procedure. Regions of interest were placed over the primary and the pleural effusion on the transaxial slice showing the highest activity. The maximum pixel standard uptake values (SUVs) were calculated. Overall survival was determined by standard Kaplan-Meier survival analysis. All patients were followed up until death. RESULTS: The median survival for the entire population was 83 days (7-988). The SUVs were higher in the primary than in the pleurisy (9.2+/-5.6 and 5.5+/-2.2, respectively). There was no correlation between primary and pleurisy SUVs (r=0.3, P>0.05). The metabolic activity of the primary tumor did not predict the outcome: the median survival was 77.5 days (range 7-988) and 87 days (19-454) in the groups with SUVs lower and higher than the median value (8.7), respectively (P>0.05). By contrast, the metabolic activity of the pleurisy was significantly correlated with the median survival, which was 196 days (40-988) when the SUVs were lower than the median value (5) and 74 days (7-170) when they were higher (P=0.0096). CONCLUSION: Among patients with T4 NSCLC, those with high metabolic activity in the pleural effusion have a dire prognosis, whereas the metabolic activity of the primary fails to predict the survival. [less ▲]Detailed reference viewed: 34 (12 ULg)
Prognostic value of metabolic imaging in locally advanced non small cell lung cancers.
DUYSINX, Bernard ; LAROCK, Marie-Paule ; CORHAY, Jean-Louis et al
in Journal of Nuclear Medicine (The) (2007), 48(SUPPL), 358Detailed reference viewed: 11 (0 ULg)
18f-Fdg Pet Imaging in Assessing Exudative Pleural Effusions
DUYSINX, Bernard ; Larock, Marie-Paule ; et al
in Nuclear Medicine Communications (2006), 27(12), 971-6
BACKGROUND: This study evaluates the accuracy of [F]fluorodeoxyglucose positron emission tomography (F-FDG PET) imaging with semi-quantitative analysis for differentiating benign from malignant pleural ... [more ▼]
BACKGROUND: This study evaluates the accuracy of [F]fluorodeoxyglucose positron emission tomography (F-FDG PET) imaging with semi-quantitative analysis for differentiating benign from malignant pleural exudates and for guiding the search for the primary tumour of pleural metastases. METHODS: Whole-body 18F-FDG PET was performed in 79 patients with exudative pleurisy. Standard uptake values were normalized for body weight, body surface area, lean body mass (SUVbw, SUVbsa, SUVlbm) with and without correction for blood glucose levels. Thoracoscopy was systematically performed to reveal pathological diagnosis. RESULTS: All SUVs were significantly higher in all malignant pleural diseases (n = 51) than in benign (n = 28) (P < 0.001). Moreover SUVs were greater in the pleural metastases from pulmonary primaries (n = 25) and in mesotheliomas (n = 8) than in extrathoracic primaries (n = 18) (P < 0.01) with no significant difference between lung cancers and mesotheliomas. Receiver operating curve (ROC) analysis between benign and malignant lesions showed areas under the curves that ranged from 0.803 (SUVbsa g) to 0.863 (SUVbw). The cut-off value for SUVbw which gave the best accuracy (82.3%) was 2.2. When comparing thoracic with extrathoracic primaries the highest accuracy (80.4%) was found for a cut-off value of 2.6. CONCLUSION: Semi-quantitative analysis of 18F-FDG PET imaging helps to differentiate malignant from benign pleural exudates and to distinguish between thoracic or extrathoracic primaries. [less ▲]Detailed reference viewed: 88 (30 ULg)
FDG-PET imaging for assessing pleural malignancy : a semi-quantitative analysis.
LAROCK, Marie-Paule ; DUYSINX, Bernard ; et al
in Journal of Nuclear Medicine (The) (2005), 46(SUPPL), 426Detailed reference viewed: 12 (0 ULg)
Clinical PET in Oncology
Rigo, Pierre ; ; Bury, Thierry et al
in Bergmann, H.; Kroiss, A.; Sinzinger H (Eds.) Radioactive Isotopes in Clinical Medicine and Research (1997)
18-FDG is accumulated in cancer cells. It has been proven useful to image a variety of tumors in conjunction with whole-body positron emission tomography. This review details somes of the indications of ... [more ▼]
18-FDG is accumulated in cancer cells. It has been proven useful to image a variety of tumors in conjunction with whole-body positron emission tomography. This review details somes of the indications of PET at various stages of the cancerous process : differential diagnosis, preoperative staging, diagnosis of residual or recurrent disease as well as follow-up of therapy. Consideration of several potential improvements in clinical PET and of the need for careful patients selection conclude this review. [less ▲]Detailed reference viewed: 50 (7 ULg)