Research Apprenticeship and Its Potential as a Distinct Model of Peer Research Practice.

BACKGROUND: Three models of peer research have emerged: advisory, employment, and partner. We propose a fourth model, the "research apprentice" prototype conceived as a postsecondary workforce development avenue for members of disadvantaged communities. OBJECTIVES: We introduce the research apprenticeship experience and its potential contributions to the fields of health equity and translational research. METHODS: Implementation of the research apprenticeship model within a survey research project. RESULTS: In this article, we 1) identify the model's distinctive qualities, 2) conceptualize an appropriate industry for graduates, 3) recognize its value for those with little access to postsecondary education, and 4) formulate a vision for contributing to health equity and translational research. CONCLUSIONS: The research apprenticeship holds potential to realize goals of capacity building, empowerment, and co-learning; generate educational progress and employment for participants; expand diversity in biomedical research; support two-directional co-learning between community and academia; and contribute to dismantling structural racism within the biomedical sciences.

Comparison of 18F-FDG PET/CT scan and 99mTc-MDP bone scintigraphy in detecting bone metastasis in head and neck tumors.

PURPOSE: The aim of this study was to evaluate the efficacy of fluorine-18 fluorodeoxyglucose (F-FDG) PET/computed tomography (CT) compared with bone scan in detecting bone metastases in patients with head and neck cancer. MATERIALS AND METHODS: A total of 319 patients with head and neck cancer were identified in our database who had undergone F-FDG PET/CT, from January 2006 until June 2007. Of them 156 patients (age range 15-100 years) met our inclusion criteria - namely, biopsy-proven head and neck cancer, and bone scan and F-FDG PET/CT within 30 days. Comparison was made on a lesion-by-lesion analysis. MRI, multidetector CT, and the clinical course of the patients were our references. RESULTS: F-FDG PET/CT identified (n=213) bone lesions in 18 patients, in addition to distant metastases in solid organs such as the liver and lung, lymphadenopathy above and below the diaphragm, and adrenal glands in 12 patients. However, bone scan identified (n=198) 16 patients. Bone scan missed two patients with confirmed bone metastases by means of biopsy in one patient and radiologically in the second. F-FDG PET/CT showed true-positive results in 18 patients, whereas bone scan showed true-positive results in 16 patients. F-FDG PET/CT showed true-negative results in 138 patients, whereas bone scan showed true-negative results in 134 patients. F-FDG PET/CT showed no false-positive or false-negative results. However, bone scan had two false-positive and two false-negative results. The overall sensitivity, specificity, and accuracy was 100% for F-FDG PET/CT and 88, 98, and 96%, respectively, for bone scan. CONCLUSION: F-FDG PET/CT is superior to Tc-methylene diphosphonate bone scan in detecting bone metastases in head and neck cancer.

The Medical Case for a Positron Emission Tomography and X-ray Computed Tomography Combined Service in Oman.

The value of a positron emission tomography and X-ray computed tomography (PET/CT) combined service in terms of diagnostic accuracy, cost-effectiveness and impact on clinical decision-making is well-documented in the literature. Its role in the management of patients presenting with cancer is shifting from early staging and restaging to the early assessment of the treatment response. Currently, the application of PET/CT has extended to non-oncological specialties-mainly neurology, cardiology and rheumatology. A further emerging application for PET/CT is the imaging of infection/inflammation. This article illustrates some of the PET/CT applications in both oncological and non-oncological disorders. In view of the absence of this modality in Oman, this article aims to increase the awareness of the importance of these imaging modalities and their significant impact on diagnosis and management in both oncological and non-oncological specialties for patients of all age groups as well as the decision-makers.

[Enecphalocele: 26 retrospective cases at the Maternal and Neonatal Center of La Rabta, Tunis]. / L'encéphalocèle: à propos de 26 cas répertoires au Centre de Maternité et de Néonatologie de La Rabta, Tunis.

Encephalocel is leff frequent than spina bifida and anencephalia. Its incidence is 0.25@1000 births. It concern as much female than male. This neural defect is frequency associated to others malformations face (20%) squelette (17%), kidney (13%). In our study the ultra sound is performant in 82% of the cases. Encephalocel is still a lethal and severe abnormality.

[Lethal uropathies: prenatal diagnosis and feto-pathologic aspects]. / Les uropathies létales: diagnostic anténatal et aspects foetopathologiques.

Forty-three prenatal diagnoses of lethal urinary tract abnormalities were carried out during a five-year-period. The abnormalities were bilateral renal agenesis (56%), autosomal recessive polycystic kidney disease (16%), autosomal dominant polycystic kidney disease (14%), MECKEL-GRUBER syndrome and Prune-Belly syndrome (4%). The pregnancy was interrupted in thirty-five cases (81.4%).

[Fetal pathology aspects of 97 cases of anencephaly. CMNR Tunisian study]. / Aspects foetopathologiques de 97 cas d'anencephalie: etude du CMNR Tunis.

So, the epidemiologic study done for 8 years at CMNR Tunis has shown that the incidence is 1.15@1000 births (between 0.52 and 1.66@1000 per year). This anomaly is more frequent in female sex (sex linked = 0.59). The antenatal echographic diagnosis is efficient in 90.5%. This anomaly is more shown at low socio-economic group. The improvement of the socio-economic level and specially the daily uptake of acid folic in periconceptionnel time decrease the frequency of this congenital malformation.