Les publications

Personalized medicine aims at offering optimized treatment options and improved survival for cancer patients based on individual variability. The success of precision medicine depends on robust biomarkers.

La récidive biologique d’un adénocarcinome de prostate après irradiation est définie selon les critères de Phoenix. Il est nécessaire de prouver une récidive histologique par des biopsies. Le but de cette étude est d’analyser la localisation des récidives et de comparer les biopsies prostatiques transpérinéales en saturation et ciblées, aux index tumoraux (IT) défini sur l’IRM et par le TDM-TEP à la 18F-choline (TEPc).

Purpose: To evaluate the potential benefit of using alternative reconstruction schemes of PET images for the prognostic value of radiomic features.

Methods: Patients (n=91) with non-small cell lung cancer were prospectively included. All had a PET/CT examination before treatment.

The positron emitter 52gMn is used for the Positron Emission Tomography – PET imaging.In this work we investigate the nuclear reactions for production of 52gMn and 54Mn induced by deuteron beams on natural chromium targets at energies up to Ed = 28 MeV using the stacked-foils activation technique.

(1) Background: Stereotactic body radiotherapy (SBRT) for vertebral metastases (VM) allows the delivery of high radiation doses to tumors while sparing the spinal cord. We report a new approach to clinical target volume (CTV) delineation based on anti-carcinoembryonic antigen (CEA) positron emission tomography (pretargeted immuno-PET; “iPET”) in patients with metastatic breast cancer (BC) or medullary thyroid cancer (MTC).

Image-guided radiotherapy (IGRT) has become a standard irradiation technique to improve the clinical outcome of patients in terms of toxicity and local control due to better targeting of radiation during the irradiation fraction. Positioning imaging systems, whether embedded or not, such as kV for 2×2D acquisitions and especially kVCBCT for 3D acquisitions are however irradiating in a large volume including the target volume but also healthy tissue, with a theoretical risk of increased toxicity and second cancer.

The levels and composition of sphingolipids and related metabolites are altered in aging and in common disorders such as diabetes and cancers, as well as in neurodegenerative, cardiovascular, and respiratory diseases.

Affitins are a novel class of small 7 kDa artificial proteins which can be used as antibody substitutes in therapeutic, diagnostic and biotechnological applications. One challenge for this type of protein agent is their behaviour in the context of oral administration.

In standard radiomics studies the features extracted from clinical images are mostly quantified with simple statistics such as the average or variance per Region of Interest (ROI). Such approaches may smooth out any intra-region heterogeneity and thus hide some tumor aggressiveness that may hamper predictions.