Objective To investigate the risk factors for the occurrence of short-term poor hearing recovery in patients with chronic suppurative otitis media(CSOM)underwent tympanoplasty under otoendoscope(TUO).Methods The clinical data of 260 patients with CSOM treated with TUO from January 2020 to October 2023 were retrospectively analyzed,the patients were followed up for 3 to 6 months after the operation,and were divided into the occurrence group(61 patients)and the non-occurrence group(199 patients)according to whether or not they experienced poor hearing recovery.The clinical data of patients in the two groups were compared,and the independent risk factors affecting the occurrence of poor hearing after TUO in CSOM patients were analyzed by Logistic regression model.Results The results of multivariate Logistic regression analysis showed that tensor tympani defects(OR=1.079,95％CI:1.054～1.105),tympanic mucosal lesions(OR=1.196,95％CI:1.076～1.330),auditory tube incompetence(OR=2.212,95％CI:1.339～3.654),auditory tube inflammation(OR=1.095,95％CI:1.047～1.146),tympanic mucosal fibrosis(OR=2.423,95％CI:1.402～4.186),and preoperative purulent secretion in the tympanic cavity(OR=1.070,95％CI:1.031～1.111)were the independent risk factors contributing to the development of poor hearing recovery after TUO in patients with CSOM(P＜0.05).Conclusion The occurrence of short-term poor hearing recovery after TUO in patients with CSOM is related to tensor tympani defects,tympanic mucosal lesions,auditory tube incompetence,auditory tube inflammation,tympanic mucosal fibrosis,and preoperative purulent secretions in the tympanic cavity,and clinically targeted preventive and curative measures may be given to postoperative patients with CSOM after TUO in order to avoid the occurrence of postoperative short-term poor hearing recovery.

Transient perivascular inflammation of the carotid artery(TIPIC)syndrome is a relatively rare disease,and ultrasound is the first screening method for initial diagnosis of the disease.Contrast-enhanced ultrasound(CEUS)has unique advantages in the follow-up of patients with TIPIC syndrome.This paper reports a patient with TIPIC syndrome who was treated with acute left neck pain.The inflammation was significantly re-lieved and subsided after treatment with non-steroidal anti-inflammatory drugs.The ultrasound changes of carotid artery lesions in this patient during follow-up were analyzed,and the application value of CEUS in the follow-up diagnosis of this disease was summarized,in the hope of providing clinical reference.

Objective To investigate the risk factors for the occurrence of short-term poor hearing recovery in patients with chronic suppurative otitis media(CSOM)underwent tympanoplasty under otoendoscope(TUO).Methods The clinical data of 260 patients with CSOM treated with TUO from January 2020 to October 2023 were retrospectively analyzed,the patients were followed up for 3 to 6 months after the operation,and were divided into the occurrence group(61 patients)and the non-occurrence group(199 patients)according to whether or not they experienced poor hearing recovery.The clinical data of patients in the two groups were compared,and the independent risk factors affecting the occurrence of poor hearing after TUO in CSOM patients were analyzed by Logistic regression model.Results The results of multivariate Logistic regression analysis showed that tensor tympani defects(OR=1.079,95％CI:1.054～1.105),tympanic mucosal lesions(OR=1.196,95％CI:1.076～1.330),auditory tube incompetence(OR=2.212,95％CI:1.339～3.654),auditory tube inflammation(OR=1.095,95％CI:1.047～1.146),tympanic mucosal fibrosis(OR=2.423,95％CI:1.402～4.186),and preoperative purulent secretion in the tympanic cavity(OR=1.070,95％CI:1.031～1.111)were the independent risk factors contributing to the development of poor hearing recovery after TUO in patients with CSOM(P＜0.05).Conclusion The occurrence of short-term poor hearing recovery after TUO in patients with CSOM is related to tensor tympani defects,tympanic mucosal lesions,auditory tube incompetence,auditory tube inflammation,tympanic mucosal fibrosis,and preoperative purulent secretions in the tympanic cavity,and clinically targeted preventive and curative measures may be given to postoperative patients with CSOM after TUO in order to avoid the occurrence of postoperative short-term poor hearing recovery.

Quality control of pediatric musculoskeletal ultrasound(MSKUS)must be integrated throughout the entire diagnostic process.Its core lies in a thorough understanding of the growth,development,and pathophysiological characteristics of the pediatric musculoskeletal system,mastery of MSKUS examination techniques,and the establishment of a systematic and comprehensive diagnostic framework.This review focuses on the core aspects of pre-examination,during examination,and post-examination to describe the quality control points and strategies for pediatric MSKUS.

Objective:To explore the application of contrast-enhanced ultrasound in the preoperative evaluation of carotid body tumor (CBT).Methods:The clinical data of 13 CBT patients undergoing contrast enhanced ultrasound test and surgical treatment at Peking Union Medical College Hospital from Nov 2017 to Aug 2021 was retrospectively analyzed.Results:Among the 13 patients, 7 patients had bilateral lesions. 18 tumors were identified by contrast enhanced ultrasound, which showed rich blood supply, with marked enhancement in 13 tumors and moderate enhancement in 5 tumors. The origins of the arterial supply for tumors were identified by contrast enhanced ultrasound. Time-intensity curve analysis showed that the tumors had enhancement characteristics of fast wash in and slow wash out. The mean contrast wash in time was (3.33±1.40) s, the mean peak intensity was (10.41±1.74) dB, and the mean wash out time was (56.47±22.28) s. A total of 13 cases underwent successful surgical removal. Five cases of external carotid artery ligation and 2 cases of internal carotid artery reconstruction were performed during surgery. Postoperative transient neurological injury occurred in 5 cases. There were no cases of cerebral infarction or death in the perioperative period. Mean postoperative follow-up was 14.31 months. Five cases of neurological injury had satisfactory recovery and no other adverse events occurred.Conclusions:Contrast enhanced ultrasound is an effective method of preoperative imaging assessment for CBT, which helps the surgical planning and preoperative preparation.

Quality control of pediatric musculoskeletal ultrasound(MSKUS)must be integrated throughout the entire diagnostic process.Its core lies in a thorough understanding of the growth,development,and pathophysiological characteristics of the pediatric musculoskeletal system,mastery of MSKUS examination techniques,and the establishment of a systematic and comprehensive diagnostic framework.This review focuses on the core aspects of pre-examination,during examination,and post-examination to describe the quality control points and strategies for pediatric MSKUS.

Objective:To explore the application of contrast-enhanced ultrasound in the preoperative evaluation of carotid body tumor (CBT).Methods:The clinical data of 13 CBT patients undergoing contrast enhanced ultrasound test and surgical treatment at Peking Union Medical College Hospital from Nov 2017 to Aug 2021 was retrospectively analyzed.Results:Among the 13 patients, 7 patients had bilateral lesions. 18 tumors were identified by contrast enhanced ultrasound, which showed rich blood supply, with marked enhancement in 13 tumors and moderate enhancement in 5 tumors. The origins of the arterial supply for tumors were identified by contrast enhanced ultrasound. Time-intensity curve analysis showed that the tumors had enhancement characteristics of fast wash in and slow wash out. The mean contrast wash in time was (3.33±1.40) s, the mean peak intensity was (10.41±1.74) dB, and the mean wash out time was (56.47±22.28) s. A total of 13 cases underwent successful surgical removal. Five cases of external carotid artery ligation and 2 cases of internal carotid artery reconstruction were performed during surgery. Postoperative transient neurological injury occurred in 5 cases. There were no cases of cerebral infarction or death in the perioperative period. Mean postoperative follow-up was 14.31 months. Five cases of neurological injury had satisfactory recovery and no other adverse events occurred.Conclusions:Contrast enhanced ultrasound is an effective method of preoperative imaging assessment for CBT, which helps the surgical planning and preoperative preparation.

Preliminary exploration of using ultrasound to quantitatively evaluate the development of epiphyseal cartilage and analyze its correlation with bone age, based on the ultrasound findings of the long bone joint end.

To research on area ossification ratio (AOR), a novel parameter for quantitatively assessing adolescent bone age by conventional ultrasonography, and evaluate the correlation between AOR and radiographic bone age.

To evaluate the correlation between ultrasound ossification ratio(OR) and exercise intensity among adolescents.