RÉSUMÉ
Objective@#To evaluate the value of multi-detector CT (MDCT) upper airway imaging in the diagnosis of obstructive sleep apnea hypopnea syndrome ( OSAHS) and in determining the location of upper airway obstruction．@*Methods @#MDCT was used to scan the upper airways of 85 clinically confirmed adult patients with different degrees of OSAHS (73 males and 12 females) in calm breathing phase and forced inhalation phase and 60 normal adults (50 males and 10 females) in calm breathing phase to obtain nasal cavity，nasopharynx，palatopharynx and oglosopharynx volumes．Parapharyngeal fat volume was measured in OSAHS patients and normal subjects．In addition，three groups of clinical data related to OSAHS patients were recorded，including sleep apnea hypopnea index (AHI) ，body mass index ( BMI) and lowest blood oxygen saturation ( LaSO2 ) ．Finally，the measured data and clinical data of each group were statistically analyzed. @*Results @#The volume of nasopharynx and palatopharynx in the calm breathing group was significantly smaller than that in the control group，with statistical significance．Palatopharyngeal volume forced inspiratory phase was significantly smaller than calm breathing phase in the experimental group．The parapharyngeal fat volume in the experimental group was significantly higher than that in the control group．AHI was positively correlated with BMI and parapharyngeal fat volume．LaSO2 was negatively correlated with AHI and BMI，respectively．@*Conclusion@#MDCT upper airway imaging has good clinical application value in the diagnosis，treatment and postoperative evaluation of OSAHS disease due to the significant anatomical difference between OSAHS patients and normal subjects.
RÉSUMÉ
OBJECTIVE@#Through 3.0 T MRI study the ear and sinus lesions of patients with acute carbon monoxide poisoning.@*METHOD@#From 2012 to 2015 collected the MRI images of the 45 patients with acute carbon monoxide poisoning, observe their changes of middle ear and mastoid and sinus imaging.@*RESULT@#The middle ear injury of mastoid 41 cases (91.1%), 22 cases (48.9%) of maxillary sinus injury, ethmoid sinus injury in 20 cases (44.4%), sphenoid sinus 9 cases (20.0%), 5 cases (11.1%) of frontal sinus injury. Carbon monoxide poisoning patients according to clinical symptoms can be divided into light, medium and heavy 3 groups, observing the ear sinus damage degree for comparison between groups, found to have significant differences (P < 0.05).@*CONCLUSION@#The patients with acute carbon monoxide poisoning ear and sinus injury should cause the attention of the medical staff, MRI can reflect people's ears from the details and the damage degree of the sinuses.