n engl j med 354;13 www.nejm.org march 30, 2006 1422 tions of influenza and should be considered for vaccination.1,2 The genetic diversity of H5N1 influenza strains causing serious human disease is greater than previously recognized. These observations have important implications for vaccine development, since the vaccine strains being developed include A/Vietnam/1194/2004 (in China) and A/Viet...

TO THE EDITOR: Recently, there have been 3 articles (1–3) published in The Journal of Nuclear Medicine attempting to define various artifactual sources that contribute to the unacceptably high rate of myocardial perfusion SPECT (MPS) studies with falsepositive findings. Each article suggests a different protocol modification intended to reduce the incidence of false-positive MPS findings. The f...

The aim of this review is to analyse the studies on nandrolone metabolism to determine if it is possible for an athlete to test positive for nandrolone without having ingested or injected nandrolone.

CASE A 27-year-old woman presented with sharp, right lower quadrant abdominal pain for six hours. The pain was colicky, non-migratory, and non-radiating. She reported fevers, anorexia and nausea, and denied dysuria or hematuria. She had no significant past medial history or prior surgeries. Vital signs were notable for a pulse of 110 and an oral temperature of 39.3°C. She had tenderness in her ...

Most spam filters are configured for use at a very low falsepositive rate. Typically, the filters are trained with techniques that optimize accuracy or entropy, rather than performance in this configuration. We describe two different techniques for optimizing for the low false-positive region. One method weights good data more than spam. The other method uses a two-stage technique of first find...

In a country like Uganda where syphilis is common, yaws occurs, and many of the diseases known to cause false positive Wassermann reactions (such as malaria, leprosy, relapsing fever, smallpox vaccination, trypanosomiasis, lymphogranuloma venereum, and infectious hepatitis) exist, it seemed desirable to obtain some background information about the frequency of positive serological tests for syp...

Introduction The morphologic features of human sperms are key indicators for monitoring fertility problems in men. Therefore, automated analyzing methods via microscopic videos have become the most favorite policy in infertility treatment during the last decades. Materials and Methods In the proposed method, firstly a hypothesis testing framework was defined to distinguish sperms from backgroun...

A 73-year-old man with history of prostatic adenocarcinoma radical prostatectomy underwent 99mTc-MDP whole-body bone scan and subsequent 68Ga-labeled prostate-specific membrane antigen (PSMA) ligand PET/CT for restaging due to a gradual rise of prostate-specific antigen levels. Whole-body bone scan showed two focal zones of slightly increased uptake in the right fronto-par...