The devolopment of supraglottic airway devices[SAD] has revolutionised the airway management in anaesthesia practice.I-gel bieng a second generation SAD, bridges the niche between facemask and tracheal tube. The position of I-gel can be confirmed by various clinical methods inorder to avoid any airleaks and to ensure adequate ventilation.But one cannnot completely rely on clinical methods for confirming correct positioning of I-gel.Sub-optimal anatomical  positioning with complete or partial obstruction of glottic aperture cannot ruled out by clinical methods alone.Clinical studies have shown that direct visualisation with Video-bronchoscopy can ensure correct placement of SAD, but its use is restricted due to its invasive nature and the need for thorough sterilisation and related expenses.

In these circumstances, the use of Ultrasound[US] have made correct positiong of I-gel, more reassuring.Hence we planned to compare the efficacy of Ultrasound[US] in confirming correct placement of I-gel with Video-bronchoscopy.

The primary objective of the study is to compare the USG images and Video-bronchoscopy images in detecting correct placement of I-gel. The secondary objective is to find the interrelationship between US detected and Video-bronchoscopy detected malposition of the I-gel and to determine the diagnostic capability of USG in detecting the I-gel malposition.

The expected outcome of the study is to detect the extend of malposition with USG aretynoid grade and Video-bronchoscopy I-gel rotation grade. Early detection of malposition can help in preventing intraoperative and postoperative complications by adjusting the position or replacing with I-gel of another size.