Department of Diagnostic Imaging, National University Hospital, Singapore, Singapore.
Division of Neurosurgery, Department of Surgery, National University Hospital, Singapore, Singapore.
Br J Radiol. 2021 Aug 1;94(1124):20200061. doi: 10.1259/bjr.20200061. Epub 2021 Jul 8.
For decades, CT has been the primary imaging modality for the diagnosis and surveillance of paediatric craniofacial disorders. However, the deleterious effects of ionising radiation in the paediatric population are well established and remain an ongoing concern. This is especially so in the head and neck region, which has relatively poor soft tissue shielding with many radiosensitive organs. The development of "black bone" imaging utilising low flip angles and short echo time (TE) has shown considerable promise in alleviating the use of ionising radiation in many cases of craniofacial disorders. In this review article, we share our experience of utilising "black bone" sequence in children with craniofacial pathologies, ranging from traumatic injuries to craniosynostosis and focal osseous/fibro-osseous lesions such as fibrous dysplasia and Langerhans cell histiocytosis (LCH). A detailed discussion on the technical aspects of "black bone" sequence, including its potential pitfalls and limitations, will also be included.
几十年来，CT 一直是儿科颅面畸形的主要诊断和监测成像方式。然而，电离辐射对儿科人群的有害影响已得到充分证实，并且仍然是一个持续存在的问题。特别是在头部和颈部区域，由于相对较差的软组织屏蔽和许多对辐射敏感的器官，情况更是如此。利用低翻转角和短回波时间（TE）的“黑骨”成像技术在许多颅面畸形的情况下，已经显示出在减轻电离辐射使用方面具有很大的潜力。在这篇综述文章中，我们分享了我们在患有颅面病变的儿童中使用“黑骨”序列的经验，这些病变的范围从创伤性损伤到颅缝早闭以及局灶性骨/纤维骨性病变，如纤维结构不良和朗格汉斯细胞组织细胞增生症（LCH）。我们还将详细讨论“黑骨”序列的技术方面，包括其潜在的陷阱和局限性。
