The pilot study of radiology nursing intervention in abdominal 3-T Magnetic Resonance examination / Estudio piloto de intervención de enfermería radiológica en examen de resonancia magnética 3-t / Estudo piloto sobre a intervenção de enfermagem na radiologia em exame de ressonância magnética abdominal 3 tesla

Abstract OBJECTIVE The aim of this study was to investigate the effect of radiology nursing intervention in abdominal examination at 3-T MRI. METHOD 60 patients with abdominal diseases were divided into two groups randomly: MR nursing intervention group and control group. All the patients underwent abdominal MR examination at 3-T. The MR nursing interventions were performed in nursing intervention group. The outcomes, including one-time success rate, the ratio of diagnosable MR images and the points of image quality, were compared between these two groups. RESULTS The one-time success rates in control group and MR nursing intervention group were 66.67% and 96.67% with significant difference ( χ2 =9.017, P<0.05). The ratios of diagnosable images in the two groups were 76.67% and 96.67% with significant difference (χ2 =5.192, P<0.05). The points of MR image quality in the two groups were 1.87±0.86 and 2.33±0.55, respectively. There was significant difference between these two groups (t=-2.508, P<0.05). CONCLUSION The effective nursing intervention can make the patients cooperation better in abdominal MR examination and improve the image quality significantly.

Resumen OBJETIVO Se objetivó investigar el efecto de la intervención de enfermería radiológica en examen abdominal de IRM 3-T. MÉTODO Sesenta pacientes con enfermedades abdominales fueron divididos aleatoriamente en dos grupos: grupo intervención de enfermería RM y grupo control. Todos fueron sometidos a examen abdominal de RM 3-T. Las intervenciones de enfermería RM se efectuaron en el grupo establecido. Los resultados, incluyendo tasa de éxito en única vez, relación de imágenes de RM diagnosticables y puntos de calidad de imagen, fueron comparadas entre ambos grupos. RESULTADOS La tasa de éxito en única vez en grupo control y grupo intervención de enfermería RM fueron de 66,67% y 96,67%, expresando diferencias significativas (χ2 =9.017, P<0.05). Los puntos de calidad de imagen de RM en ambos grupos fueron 1,87±0,86 y 2,33±0,55, respectivamente. Existió diferencia significativa entre los grupos (t=-2.508, P<0.05). CONCLUSIÓN La intervención de enfermería efectiva puede mejorar la cooperación de los pacientes en examen abdominal de RM y mejorar significativamente la calidad de imagen.

Resumo OBJETIVO O objetivo deste estudo foi investigar o resultado da intervenção de enfermagem na radiologia em exame de ressonância magnética (RM) abdominal 3 Tesla. MÉTODO 60 pacientes com patologias abdominais foram aleatoriamente divididos em dois grupos: grupo de intervenção de enfermagem em RM e grupo controle. Todos os pacientes foram submetidos ao exame de RM abdominal 3 Tesla. As intervenções de enfermagem em RM foram realizadas no grupo de intervenção de enfermagem. Os resultados foram comparados entre os dois grupos, incluindo a taxa de sucesso único, o coeficiente das imagens de RM diagnosticáveis e os pontos da qualidade de imagem. RESULTADOS As taxas de sucesso único no grupo controle e no grupo de intervenção de enfermagem em RM foram 66,67% e 96,67%, com diferença significativa de (χ2 =9,017, P<0,05). Os coeficientes das imagens diagnosticáveis nos dois grupos foram 76,67% e 96,67%, com diferença significativa de (χ2 =5,192, P<0,05). Os pontos da qualidade de imagem da RM nos dois grupos foram respectivamente 1,87±0,86 e 2,33±0,55. Houve uma diferença significativa entre estes dois grupos (t=-2,508, P<0,05). CONCLUSÃO A intervenção de enfermagem eficaz pode melhorar a cooperação dos pacientes no exame de RM abdominal e melhorar consideravelmente a qualidade da imagem.

Co-metabolism of DDT by the newly isolated bacterium, pseudoxanthomonas sp. wax

Microbial degradation of 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) is the most promising way to clean up DDT residues found in the environment. In this paper, a bacterium designated as wax, which was capable of co-metabolizing DDT with other carbon sources, was isolated from a long-term DDT-contaminated soil sample by an enrichment culture technique. The new isolate was identified as a member of the Pseudoxanthomonas sp., based on its morphological, physiological and biochemical properties, as well as by 16S rRNA gene analysis. In the presence of 100 mg l-1 glucose, the wax strain could degrade over 95 percent of the total DDT, at a concentration of 20 mg l-1, in 72 hours, and could degrade over 60 percent of the total DDT, at a concentration of 100 mg l-1, in 144 hours. The wax strain had the highest degradation efficiency among all of the documented DDT-degrading bacteria. The wax strain could efficiently degrade DDT at temperatures ranging from 20 to 37ºC, and with initial pH values ranging from 7 to 9. The bacterium could also simultaneously co-metabolize 1,1-dichloro-2,2-bis(p-chlorophenyl)ethane (DDD), 2,2-bis(p-chlorophenyl)-1,1-dichlorethylene (DDE), and other organochlorine compounds. The wax strain could also completely remove 20 mg kg-1 of DDT from both sterile and non-sterile soils in 20 days. This study demonstrates the significant potential use of Pseudoxanthomonas sp. wax for the bioremediation of DDT in the environment.