A fractal approach to the segmentation of microcalcifications in digital mammograms

F Lefebvre, H Benali, R Gilles, E Kahn… - Medical …, 1995 - Wiley Online Library
This paper presents a computerized method for the automated segmentation of individual
microcalcifications in a region of interest (ROI) known to contain a cluster in digital …

Computerized ultrasound B-scan characterization of breast nodules

F Lefebvre, M Meunier, F Thibault, P Laugier… - Ultrasound in medicine …, 2000 - Elsevier
The ability of computerized parameters to discriminate benign from malignant breast
nodules from digitized ultrasonic acquisitions has been assessed. The images of 75 lesions, …

The usefulness of a preoperative compact imager, a hand-held γ-camera for breast cancer sentinel node biopsy: final results of a prospective double-blind, clinical …

…, O Pascal, MA Duval, F Lefebvre… - Journal of nuclear …, 2011 - Soc Nuclear Med
The aim of this study was to compare the effectiveness of a hand-held preoperative compact
imager (POCI) camera with conventional lymphoscintigraphy using a γ-camera for sentinel …

Evaluation of error bounds on calcaneal speed of sound caused by surrounding soft tissue

C Chappard, E Camus, F Lefebvre, G Guillot… - Journal of Clinical …, 2000 - Elsevier
For absorptiometry measurements, soft tissue may have an impact on quantitative ultrasound
(QUS) measurements. In the present study, we focused primarily on the quantification of …

A simulation model of clustered breast microcalcifications

F Lefebvre, H Benali, R Gilles, R Di Paola - Medical physics, 1994 - Wiley Online Library
A simulation model of clustered microcalcifications superimposed on normal mammographic
backgrounds has been developed and evaluated. A cluster is described according to its …

Physical performance of an intraoperative beta probe dedicated to glioma radioguided surgery

…, S Palfi, R Siebert, MA Duval, F Lefebvre… - … on Nuclear Science, 2008 - ieeexplore.ieee.org
The precise delineation and excision of brain tumor extent allows to improve survival outcome
and quality of life of surgically treated patients. In order to refine the resection of gliomas, …

Automatic three-dimensional reconstruction and characterization of articular cartilage from high-resolution ultrasound acquisitions

F Lefebvre, N Graillat, E Chérin, G Berger… - Ultrasound in medicine & …, 1998 - Elsevier
Three-dimensional (3D) high-resolution ultrasonography has proved to be useful for in vitro
assessment of cartilage remodeling due to osteoarthritis. The diagnosis is performed by …

A comparison between 51chromium release and LDH release to measure cell membrane integrity: Interest for cytocompatibility studies with biomaterials

L Bordenave, R Bareille, F Lefebvre… - Journal of Applied …, 1993 - Wiley Online Library
A variety of methods have been recorded for the assessment of altered cellular functions
caused by biomaterials. Cell membrane integrity can be determined by different tests …

A method based on Monte Carlo simulations and voxelized anatomical atlases to evaluate and correct uncertainties on radiotracer accumulation quantitation in beta …

…, H Gurden, AL Routier, F Lefebvre… - Physics in Medicine …, 2008 - iopscience.iop.org
The β-microprobe is a simple and versatile technique complementary to small animal
positron emission tomography (PET). It relies on local measurements of the concentration of …

Evaluation of Bioabsorbable Elastin‐Fibrin Matrix as a Barrier in Surgical Periodontal Treatment

…, S Cadot, Y Lauverjat, F Lefebvre… - Journal of …, 1996 - Wiley Online Library
The purpose of this investigation was to test clinically the efficiency of a recently described
bioabsorbable matrix as a guided tissue regeneration membrane. This matrix was prepared …