A novel method for diaphragm-based electrode belt position of electrical impedance tomography by ultrasound

Table 1 Demographic data of 8 healthy volunteer and 50 critically ill patients

Patients (n)	50
Female (n)	23
Age (years)	59.12 ± 14.17
Height (cm)	165.02 ± 7.09
Body weight (kg)	67.70 ± 11.92
BMI (kg/m²)	24.78 ± 3.40
Pts with smoking history	22
Received vasoactive drugs (n)	32
APACHE-II	13.42 ± 5.85
SOFA	8.3 ± 3.65
Oxygenation index	313.14 ± 125.18
PCO2 (mmHg)	39.76 ± 4.68
Respiratory rate (breaths/min)	15.94 ± 3.37
PEEP (cmH₂O)	5.44 ± 1.07
MAP (mmHg)	92.08 ± 13.67
Major diseases
Cardiovascular disease (n)	31
Digestive system (n)	5
Infectious diseases (n)	4
Urinary system diseases (n)	6
Gynecological diseases (n)	1
Pelvic tumors (n)	1
Respiratory diseases (n)	2

Height and weight were preoperative measurements upon admission. The APACHE-II score was that determined in the first 24 h after admission to the ICU. The SOFA was the highest score in the 24 h after ICU admission. The oxygenation index and PCO₂ were collected within 2 h at the time of testing. Respiratory rate and mean arterial pressure (MAP) were recorded at the time of EIT testing
ICU intensive care unit, BMI body mass index, APACHE-II Acute Physiology and Chronic Health Evaluation II, SOFA Sequential Organ Failure Assessment, PCO2 partial pressure of carbon dioxide, PEEP positive end-expiratory pressure

ISSN: 2052-0492