Ultrasonic Imaging Of Laryngeal Carcinoma With Neoplastic Invasion Of Paraglottic Space And Thyroid Cartilage

Objective:To explore ultrasound anatomy and ultrasonic image for the normal anatomy of the larynx by comparing fault cuts of four bodies of specimen with ultrasound image of normal people, so as to evaluate the ultrasonic imaging of laryngeal carcinoma with neoplastic invasion of paraglottic space and thyroid cartilage when ultrasonic diagnosis were adapted in laryngeal carcinoma after establishing ultrasound anatomy for the larynx, and had a study on its clinical application value as well.Methods:Made different thickness of layer of faults according to the throat anatomical sign and section of the typical parts added from other bodies to complete the normal anatomy section of different throat sign.40 normal controls took supine, head slightly leaned back to make neck straight. scanned region from superior border of the hyoid bone level to margo inferior of the cricoid cartilage on the body surface. According to conventional ultrasonic scanning, identify the main anatomical structure of the throat:hyoid bone, epiglottis cartilago epiglottica, thyroid cartilage, cricoid cartilage, and vocal cords, ventriculus laryngis, etc. in the scaning course of Cross-section, longitudinal section and obliquely section.87 cases extremely suspected laryngeal carcinoma were detected with ultrasonography and CT before the operation, obtaining imagines through ultrasonographic performance for laryngeal cancer. Ultrasound examination and CT examination results were compared with the pathological diagnosis of biopsy under laryngoscope or (and) in the couse of operation. To expore the sensitivity and specificity of laryngeal carcinoma with neoplastic invasion of paraglottic space and thyroid cartilage of ultrasound examination and CT examination and proceed statistical analysis.Results:36 cross sections of the throat cut by the important anatomical deconstruction from Four bodies in anatomical specimens throat basically show the structure of the throat; Ultras onography showed unambiguous ultrasonic imagings of the larynx in 40 cases of normal adults throat, and it can be used for laryngeal diseases. In the 87 cases of patients who were suspected laryngeal cancer,74 people were pathology confirmed as laryngeal cancer, among them T1, T2 and T3, T4 are 29,14,24 and 16, carcinoma in situ 2 cases, dysplasia 5 cases,6 cases of inflammation.74 cases of laryngeal cancer patients, most of the T3 and all the patients of the T4 were had total resection (1 patient suffered from distant metastasis and gave up treatment).15 cases in the 44 cases were invaded in the paraglottic space judged by Ultrasonic sound while 14 cases by CT. There was significant difference between ultrasonic imaging and CT examination(P<0.01), showing that two inspections in judging laryngeal carcinoma with neoplastic invasion of paraglottic space had statistical difference, CT examination is superior to the ultrasound examination. The coincidence rate in judging laryngeal carcinoma with neoplastic invasion of thyroid cartilage by ultrasound was 93.3% (14/15),while it was 80% (12/15) by CT. Ultrasound examination and CT examination in judging laryngeal carcinoma with neoplastic invasion of thyroid cartilage is P< 0.05, showing two inspections had difference, ultrasound examination is superior to the CT examination. The ultrasonic imaging had a higher sensitivity than CT examination(P<0.05).Conclusions:Ultrasonography can show images of the anatomic structures of the throat with high quality . Ultrasonography could be applied in the examination of the laryngeal carcinoma, showing the location of the mass, size, shape, number, the internal echoes and blood supply information and other information. Ultrasonic imaging can be applied in judging wether laryngeal carcinoma with neoplastic invasion of the paraglottic space and thyroid cartilage or not, there was a certain difference with CT. Ultrasonic imagings have important values to the clinical treatment in laryngeal cancer which would afford a significant evidences for the therapeutic schedule in the clinical activities.