Department of Otolaryngology Head and Neck Surgery, Perth Children's Hospital, 15 Hospital Avenue, Nedlands, Western Australia, 6009, Australia.
Department of Otolaryngology Head and Neck Surgery, Perth Children's Hospital, 15 Hospital Avenue, Nedlands, Western Australia, 6009, Australia.
Int J Pediatr Otorhinolaryngol. 2020 May;132:109910. doi: 10.1016/j.ijporl.2020.109910. Epub 2020 Jan 29.
Magnetic resonance imaging (MRI) of the temporal bones, specifically of the cochlea and retro-cochlear pathway, is an important investigation in the diagnostic workup and management of congenital hearing loss. However, obtaining a diagnostic quality MRI scan depends upon the need for the infant to remain still for the duration of the scan. The Feed and Wrap (F + W) technique is a method that has been used successfully in infants for scans of other parts of the body, but has not been properly studied in MRI scans performed for hearing loss. The primary aim was to evaluate the diagnostic success rate of a newly introduced Feed and Wrap MRI scanning protocol used for assessment of sensorineural hearing loss in infants at Western Australia's Tertiary Paediatric hospital over the last three years. The secondary aims were to discuss the advantages and disadvantages of this technique and to review the available published literature on this technique and compare it to our case series.
All F + W MRI scans performed for the investigation of congenital hearing loss between 2016 and 2019 at the King Edward Memorial Hospital for Women and Perth Children's Hospital were retrospectively reviewed. The primary outcome was the diagnostic utility of the MRI scan with a diagnostic scan defined as the ability to diagnose or exclude radiological causes of sensorineural hearing loss.
53 MRI scans of the temporal bone and brain were identified. 86.8% of scans were diagnostic. The mean age of infants who underwent diagnostic scans was 6.8 weeks old compared to 10.9 weeks (p = 0.01) for those who had non-diagnostic scans. The optimal age cut off for F + W technique was ≤10 weeks. The odds of failure are 16.7 (95%CI 6.5-42.8, p = 0.003) times higher above the cut of age of 10 weeks compared to ≤10 weeks.
The F + W technique is a viable method for obtaining diagnostic quality MRI scans of the inner ear structures in infants with hearing loss, with a greater likelihood of success when applied in younger infants.
颞骨磁共振成像（MRI），特别是耳蜗和耳蜗后径路的 MRI，是先天性听力损失诊断和管理的重要检查。然而，获得具有诊断质量的 MRI 扫描取决于婴儿在扫描过程中保持静止的需要。喂养和包裹（Feed and Wrap，F+W）技术是一种已成功用于身体其他部位扫描的方法，但尚未在用于听力损失的 MRI 扫描中进行适当研究。主要目的是评估过去三年在西澳大利亚三级儿科医院中用于评估婴儿感觉神经性听力损失的新引入的 F+W MRI 扫描方案的诊断成功率。次要目的是讨论该技术的优缺点，并回顾该技术的现有文献，并将其与我们的病例系列进行比较。
回顾性分析 2016 年至 2019 年期间在爱德华国王纪念医院和珀斯儿童医院为先天性听力损失进行的所有 F+W MRI 扫描。主要结果是 MRI 扫描的诊断效用，诊断性扫描定义为诊断或排除感觉神经性听力损失的影像学原因的能力。
确定了 53 例颞骨和脑的 MRI 扫描。86.8%的扫描具有诊断价值。接受诊断性扫描的婴儿的平均年龄为 6.8 周，而非诊断性扫描的婴儿为 10.9 周（p=0.01）。F+W 技术的最佳年龄截止值为≤10 周。与≤10 周相比，年龄超过 10 周的 F+W 技术失败的可能性高 16.7 倍（95%CI 6.5-42.8，p=0.003）。
F+W 技术是一种可行的方法，可用于获得听力损失婴儿内耳结构的具有诊断质量的 MRI 扫描，在年龄较小的婴儿中成功率更高。
