Ultrasound-Guided Needle Biopsy as an Alternative to Chamberlain's Mediastinotomy and Video-Assisted Thoracoscopic Surgery (VATS) in the Diagnosis of Anterior Mediastinal Neoformations: A Retrospective Analysis.

(1) Background: The prompt diagnosis of anterior mediastinal lesions is a challenge due to their often being categorized as malignant tumours. Ultrasound-guided Transthoracic Core Needle Biopsy (US-TCNB) is an innovative technique that is arousing increasing interest in clinical practice. However, studies in this area are still scarce.

Aortic CT angiography dose reduction: investigation of optimal noise index and iterative algorithm strength in combination with low kV.

Objective: The purpose of this study was to optimize an aorta angiographic CT protocol, by investigating the best combination of tube current modulation, iterative algorithm strength and kV reduction.

Materials And Methods: Anthropomorphic phantoms of three sizes were imaged by CT with different values of noise index, of iterative algorithm ASIR percentages and kV in the range 80-120. Quantitative noise and contrast noise ratios were evaluated at different phantom locations.

[Population fluctuation of Xyleborus ferrugineus and X. affinis (Coleoptera: Curculionidae) in ecosystems of Tabasco, Mexico].

The Scolytinae insects are commonly known as bark or ambrosial beetles because of their feeding habits. Among them, some species restrict their reproductive activity to a host plant or a small number of them, whereas others are highly polyphagous. In order to evaluate the population dynamics of Scolytinae species, populations of Xyleborusferrugineus and X.

Feeding patterns of the aquatic grasshopper Cornops aquaticum (Bruner) (Orthoptera: Acrididae) in the middle Paraná river, Argentina.

The aquatic grasshopper Cornops aquaticum (Bruner) is native to South America and inhabits lowlands from southern Mexico to Central Argentina and Uruguay. This grasshopper is host-specific to aquatic plants of the genera Eichhornia and Pontederia. The objectives of this study were to analyze the feeding patterns of the aquatic grasshopper C.

Factors associated with ureteral burn injury from an electrified guidewire.

Purpose: During ureteroscopic procedures, electrocautery is often utilized in the presence of an intra-ureteral guidewire. Inadvertent electrification of the guidewire may occur if the active electrode comes into contact with the guidewire, potentially resulting in a ureteral burn injury. This study investigates under what conditions electrification of a ureteral guidewire would result in ureteral burn injury.