No abstract

The present study aimed to evaluate the applicability of artisanal simulators to teach veterinary and medical students the ultrasound-guided percutaneous biopsy using a tru-cut needle. The artisanal simulators consisted of bovine liver between two layers of commercially available grape gelatin. Students were paired, with one doing the biopsy and the other the ultrasound guidance. After performing the biopsies, each student answered a questionnaire with close-ended questions using a visual analog scale. The evaluated items were realism of the model, liver scanning, procedure instructions, biopsy feasibility, tru-cut needle handling, technique learning, and confidence to perform in vivo procedures. Items that received a score of 7 or higher were considered strong items; items with a score between 5 and 6.9 were classified as average items; and items with a score of 5 or lower were considered weak items. The answers to all questions had an average score of 7 or higher, suggesting that the simulator was classified as strong for all of the evaluated items. Answers to question 7 suggested that some of the students did not develop confidence to perform a tru-cut biopsy on a patient. Students evaluated the artisanal simulator as a strong method to be used in ultrasound-guided percutaneous biopsy with a tru-cut needle. Additionally, the model presented a low cost of production and was proven accurate to teach biopsy skills in health professional schools dealing with veterinary or human medicine.

No abstract

TAMIRIS, D. Impact of weight loss on B mode and color Doppler ultrasonographic parameters of the liver and right hepatic vein of obese female dogs. 2019. 101 p.

Fine needle puncture (FNP) is a widespread technique used to collect cellular samples. Its efficiency can be enhanced by the use of ultrasonography to guide the procedure. Ultrasound-guided fine needle puncture is therefore an operator-dependent exam. For this reason, it demands the acquisition of psychomotor skill, ability to recognize structures and dexterity during the needle puncture. This study described the development of an artisanal simulator made with gelatin to replace the use of live animals during practical classes in Veterinary or Medical Sciences education. The experimental set consisted of three phases in which the student should perform different tasks such as recognition of the target structure with the ultrasound and injection of ink (phase 1) or aspiration (phase 2) of its content; and evaluation of a parenchymatous organ (liver) and puncture of its surface (phase 3). A survey on the acceptance of the model was carried out and students filled a questionnaire elaborated with the Visual Analog Scale system. Participants considered the artisanal model as a strong method to teach ultrasound-guided FNP. Other attractive advantages of this simulator are the low manufacturing costs (compared to expensive high-technology devices) and the possibility to replace the use of live animals in practical classes.