Ultrasound vs Chest X-ray for NG Tube Placement in ICU

Inclusion Criteria: Age ≥ 18 years Clinical indication for nasogastric tube placement Written informed consent obtained from the patient or a legally authorized representative Exclusion Criteria: * Refusal to participate in the study Age \< 18 years Pregnancy Contraindications to nasogastric tube placement, including: Facial trauma Basilar skull fracture Esophageal obstruction Recent upper gastrointestinal surgery Presence of wounds, burns, or surgical dressings in the epigastric region that preclude adequate ultrasonographic evaluation