In a study published in Biosensors, a label-free and rapid identification technique based on artificial intelligence (AI)-assisted terahertz imaging is proposed to identify the therapeutic effect of low-level laser therapy for acute lung injury. Acute lung injury is a severe respiratory failure characterized by hypoxemia and the development of bilateral infiltrates on chest radiographs and is sometimes referred to as acute respiratory distress syndrome. Acute lung injury continues to substantially cause high mortality and morbidity in critically sick patients. Due to the ineffectiveness of current therapies for acute lung injury, it is critical to develop an effective therapeutic approach to significantly lower mortality and enhance the life expectancy of patients. Low-level laser therapy holds significant potential as a noninvasive therapeutic technique in biomedicine.