Objective To analyze MRI and CT features of struma ovarii (SO).Methods CT and MRI findings of 14 patients with pathologically confirmed single SO were retrospectively analyzed.The morphology,size,density/signal intensity and enhancement pattern of lesions were analyzed.Results All the tumors appeared as well-defined cystic-solid masses,11 were multilobulated and 3 were round-like.Thirteen lesions were multicystic,and 1 was unilocular.The solid components appeared as thickness septa or wall in 11 and as nodule in 3 lesions.The maximum diameter of the tumors were 3-34 cm,with an average size of (11.34±2.24)cm.MRI showed extremely low signal intensity regions in cyst portion of 7 masses on T2WI without enhancement,while obvious enhancement in solid potion.CT showed high attenuation in cyst portion of 7 masses without enhancement,CT value were 57-90 HU,whereas the solid potion obviously enhanced,and CT values were 145-270 HU.Plaque-like calcification on the walls or nodules were observed in 4 patients.Conclusion CT and MRI findings of SO have certain characteristics,which are helpful for diagnosis and differential diagnosis.

Objective:To explore the current status and influencing factors of breathlessness beliefs in patients with chronic obstructive pulmonary disease (COPD) .Methods:Using the convenient sampling method, a total of 167 COPD patients who were admitted to Henan Provincial People's Hospital from April to September 2021 were selected as the research objects. The general information questionnaire, The Breathlessness Beliefs Questionnaire (BBQ) , Social Support Revalued Scale (SSRS) and Multidimensional Fatigue Inventory-Short Form (MFI-SF) were used for questionnaire survey.Results:The BBQ score of 167 COPD patients was (40.92±8.77) , the MFI-SF score was (54.83±14.21) and the SSRS score was (41.23±8.19) . The results of multiple linear regression analysis showed that disease grouping, general fatigue, physical fatigue and MFI-SF were the influencing factors of breathlessness beliefs in COPD patients ( P<0.05) . Conclusions:The breathlessness belief in COPD patients is related to disease grouping and fatigue degree, suggesting that relevant measures should be taken to reduce the cognitive level of fear of dyspnea and activity, so as to improve the exercise level and quality of life of patients.