martes, 29 de mayo de 2007

Siemens proves feasibility of MR/PET hybrid
http://www.dimag.com/ismrm/2007/showArticle.jhtml?articleID=199701810&cid=DIMAG-news-weekly-052907

jueves, 24 de mayo de 2007

White paper of the EANM and the ESR on multimodality imaging

Adjunto mensaje enviado desde la EANM. Tengo a disposición de los interesados ambos documentos

"A letter by the Presidents of the European Association of Nuclear Medicine(EANM) and the European Society of Radiology (ESR) regarding the "White paper of the EANM and the ESR on multimodality imaging". The text of the white paper, which will be published in both the European Journal of Nuclear Medicine and Molecular Imaging and European Radiology in August 2007".

miércoles, 23 de mayo de 2007

Un mapa de las diferencias geográficas de la Sanidad española

http://elmundosalud.elmundo.es/elmundosalud/2007/05/23/medicina/1179918594.html?a=03aa4a9452886561072a272d5dfec685&t=1179923995

martes, 22 de mayo de 2007

MRI-PET system an ISMRM highlight for Siemens
http://www.auntminnie.com/index.asp?Sec=sup&Sub=mri&Pag=dis&ItemId=75897&wf=1900
PET/CT moves closer to diagnostic standard of care
http://www.auntminnie.com/index.aspx?d=1&sec=spt&sub=tir&pag=dis&itemID=74571&wf=1900

jueves, 10 de mayo de 2007

El Reina Sofía incorpora nuevas técnicas para combatir el cáncer
http://www.diariocordoba.com/noticias/noticia.asp?pkid=320854

miércoles, 2 de mayo de 2007

N2/Tumor primario

Ratio of the maximum standardized uptake value on FDG-PET of the mediastinal (N2) lymph nodes to the primary tumor may be a universal predictor of nodal malignancy in patients with nonsmall-cell lung cancer.

Ann Thorac Surg. 2007 May;83(5):1826-9; discussion 1829-30.
Cerfolio R.J., Bryant A.S.
Department of Surgery, Division of Cardiothoracic Surgery, University of Alabama at Birmingham School of Public Health, Birmingham, Alabama 35294, USA. robert.cerfolio@ccc.uab.edu
BACKGROUND: The maximum standardized uptake value (maxSUV) on F-18 fluorodeoxyglucose-positron emission tomography (FDG-PET) scan of mediastinal (N2) lymph nodes may predict pathology in patients with nonsmall-cell lung cancer. However, the maxSUV varies among PET scanners. Thus, we evaluated the ratio of the maxSUV of the lymph node to the primary tumor at different centers to determine whether it was a universal predictor of lymph node malignancy. METHODS: This is a retrospective review of a prospective database. Patients with nonsmall-cell lung cancer, a dedicated FDG-PET with the maxSUV of the primary lung tumor and FDG-avid mediastinal (N2) nodes reported (before therapy), and who underwent lymph node removal were eligible. RESULTS: There were 239 patients with 335 FDG-PET-positive N2 nodes at 14 different PET centers. The median ratio of the maxSUV of the lymph node to the maxSUV of the primary tumor of the pathologically proven malignant nodes was 0.58 (range, 0.32 to 1.61). Benign nodes had a median ratio of 0.40 (range, 0.21 to 1.10, p = 0.02). The median value was similar for all centers except one. Receiver operating characteristics analysis determined the optimal value of the ratio that maximized sensitivity to be 0.56 or greater (+LR 6.6, sensitivity 94%, specificity 72%). CONCLUSIONS: The ratio of the maxSUV of the mediastinal (N2) lymph node to the maxSUV of the primary tumor in patients with nonsmall-cell lung cancer predicts mediastinal nodal pathology across different PET centers. When the ratio is 0.56 or greater, there is a 94% chance that the node is malignant. The ratio may take into account the different techniques used at different centers