Department of Audiology and Phoniatrics, Charité-University Medicine Berlin, Campus Charité Mitte, Charitéplatz 1, D-10117 Berlin, Germany.
Department of Pneumology, HELIOS Kliniken Schwerin, Wismarsche Str. 393-397, D-19049 Schwerin, Germany.
Biomed Res Int. 2020 Dec 21;2020:5309508. doi: 10.1155/2020/5309508. eCollection 2020.
The vocal extent measure (VEM) represents a new diagnostic tool to express vocal capacity by quantifying the dynamic performance and frequency range of voice range profiles (VRPs). For VEM calculation, the VRP area is multiplied by the quotient of the theoretical perimeter of a circle with equal VRP area and the actual VRP perimeter. Since different diseases affect voice function to varying degrees, pathology-related influences on the VEM should be investigated more detailed in this retrospective study, three years after VEM implementation. Data was obtained in a standardized voice assessment comprising videolaryngostroboscopy, voice handicap index (VHI-9i), and acoustic-aerodynamic analysis with automatic calculation of VEM and dysphonia severity index (DSI). The complete dataset comprised 1030 subjects, from which 994 adults (376 male, 618 female; 18-86 years) were analyzed more detailed. The VEM differed significantly between pathology subgroups ( < 0.001) and correlated with the corresponding DSI values. Regarding VHI-9i, the VEM reflected the subjective impairment better than the DSI. We conclude that the VEM proved to be a comprehensible and easy-to-use interval-scaled parameter for objective VRP evaluation in all pathology subgroups. As expected, exclusive consideration of the measured pathology-related influences on the VEM does not allow conclusions regarding the specific underlying diagnosis.
声门活动度测量（VEM）是一种新的诊断工具，通过量化嗓音频域图（VRP）的动态性能和频率范围来表达嗓音能力。在 VEM 计算中，VRP 面积乘以具有相同 VRP 面积的理论圆周长与实际 VRP 周长的商。由于不同的疾病对嗓音功能的影响程度不同，因此在 VEM 实施三年后，本回顾性研究更详细地研究了与病理学相关的因素对 VEM 的影响。数据是在标准化的嗓音评估中获得的，包括频闪喉镜检查、嗓音障碍指数（VHI-9i）和声学空气动力学分析，自动计算 VEM 和嗓音障碍严重指数（DSI）。完整的数据集包括 1030 名受试者，其中 994 名成年人（376 名男性，618 名女性；18-86 岁）进行了更详细的分析。VEM 在病理学亚组之间存在显著差异（<0.001），并与相应的 DSI 值相关。关于 VHI-9i，VEM 比 DSI 更能反映主观损伤。我们得出结论，VEM 被证明是一种易于理解和使用的参数，可用于评估所有病理学亚组的客观 VRP。正如预期的那样，仅考虑 VEM 测量的与病理学相关的影响并不能得出关于特定潜在诊断的结论。
