Background: Timely diagnosis of primary retroperitoneal tumours is one of the current challenges of clinical oncology. This is due to the rarity, polymorphism and diagnostic difficulties of primitive retroperitoneal tumours. Material and methods: The study is cross-sectional, prospective and retrospective. The study group is represented by 118 patients with abdominal and retroperitoneal space tumours. Using the receiver operating characteristic (ROC) analysis curve and calculating the average quality of the diagnostic model, the informativeness of ultrasonography in the diagnosis of primary retroperitoneal tumours (PRT) was appreciated. Results: For tumour localization, the ultrasonography (USG) as a diagnostic model demonstrated an appropriate use criteria (AUC) of 0.641 (95% CI 0.541, 0.740, p <0.001), and the mean quality of the diagnostic model was 0.54. Following the statistical analysis, was found a partial correlation between the size of the tumour and the dimensions estimated at USG of 0.540 (95% CI 0.295, 0.737, p <0.001), which represents a high positive correlation. To determine the uni- or multicentric character of the tumour, the USG demonstrated an integrative value of sensitivity and specificity of 0.644 (95% CI 0.415, 0.873, p <0.001. In assessing the proximity ratio of retroperitoneal tumours, the highest AUC was recorded in the assessment of the ratio of tumour to pancreas – 0.838 (95% CI 0.705.0.971, p <0.001) and kidney – 0.861 (95% CI 0.699, 1.024, p <0.001). Conclusions: Ultrasonography is a fairly informative imaging diagnostic method in the diagnosis of retroperitoneal tumours. The characteristics of the tumours obtained after the ultrasound examination provide indirect information about the malignant or benign nature of the primitive tumour, which allows the assessment of the next stages of diagnosis and treatment.
The generation and disposal of medical waste is an ongoing issue for medical facilities. Medical institutions, including hospitals, clinics, and facilities for patient diagnosis and treatment, produce highly hazardous waste for human. The actual pilot study used the questionnaire, based on the World Health Organization form, translated into Romanian where a number of pertinent questions were chosen. The form has been tested in 21 health facilities at the Republican and municipal levels. Tests were conducted online, the average number of beds in medical institutions being – 142.1±127.3 [M±SD]. The average number of employers in medical facilities was 268±173.9 [M±SD]. Following questionnaire testing and analysis of responses, three questions and 15 response options were excluded, 31 questions were amended or adjusted, and three new questions were added. Following the pilot study, it was noted that most of the questions met the criteria submitted for the form: specificity, clarity, simplicity of wording, veracity and reasoning. Additionally, a number of issues have been identified that require a complex and immediate approach.
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