查詢結果分析
相關文獻
- Development of Adenoids : A Study by Measurement with MR Images
- 定溫下不同光週期對外米綴蛾發育羽化及生殖力之影響
- 合歡山臺灣冷杉土壤之發育與分類
- Premaxillary Size and Craniofacial Growth in Patients with Cleft Lip and Palate
- 只要我喜歡,有什麼不可以--談生長期性發育問題
- Radiographic Diagnostic Features fo Nail-Patella Syndrome: Case Reports and a Review of the Literature
- Comparison of Upper Floret Development in Bisexual and Male Spikelets of Thuarea Involuta (Gramineae) with Scanning Electron Microscopy
- Anhidrotic Ectodermal Dysplasia--Report of Two Brothers with One Having Unusual Skin Manifestation
- Ontogenetic Changes of Sound Production in Japanese Croaker, Argyrosomus Japonicus (Sciaenidae)
- Albright氏遺傳性骨發育不全症併原發性皮膚骨化
頁籤選單縮合
題 名 | Development of Adenoids : A Study by Measurement with MR Images=腺樣體之發育:以磁振造影測量研究 |
---|---|
作 者 | 趙垂勳; 許瑞昇; 劉金昌; 林威辰; | 書刊名 | The Kaohsiung Journal of Medical Sciences |
卷 期 | 15:1 1999.01[民88.01] |
頁 次 | 頁12-18 |
分類號 | 414.93 |
關鍵詞 | 腺樣體; 發育; 磁振造影測量; Adenoids; Development; Magnetic resonance imaging; |
語 文 | 英文(English) |
中文摘要 | 磁振造影可以清楚顯示腺樣體,並與周圍之軟組織區別,故可測得其實際大小。吾人可利用之來研究腺樣體的正常發育模式。為了明瞭腺樣體之正常發育模式及其在孩童鼻咽氣道阻塞所扮演的角色,我們收集了因其他理由檢查的兒童正常頭部磁振造影,並對其臨床資料及病史做詳細檢視,將有呼吸道疾患、可能影響腺樣體大小的系統性疾患及早產兒等均加以排除。總計收集了 290 例嬰兒及孩童,將之分成 19 個年齡群。並以相同的條件收集了15 例成人組(平均22歲)。利用正中矢狀面 T1-weighted spin-echo 磁振造影之影像,測定其腺樣體之最大厚度 (A),鼻咽之前後徑 (N),及腺樣體鼻咽之比值(A/N ratios)。結果顯示:三個月以下的嬰兒,11 例中僅有 2 例 (18%) 可見腺樣體;而 4 個月嬰兒 8 例中有 6 例 (75%) 可見腺樣體;5 個月大以後則腺樣體均可見。而此後腺樣體的發育相當快速,在 2 歲至 14 歲間呈現高原期,其平均厚度在 10.7 至 12.2 mm 之間。而於 15 歲以後,腺樣體即迅速退化。至於腺樣體鼻咽之比值 (一般用以評估鼻咽氣道阻塞者),在3歲至7歲間形成一高原期。而此後,隨著鼻咽的穩定成長,腺樣體在氣道阻塞所扮演的角色,於後孩童期逐漸變得不重要。 |
英文摘要 | Magnetic resonance (MR) imaging, which is able to demonstrate the actual size of adenoids by differentiating them from other soft-tissue structures, can be effectively used to study the normal development of adenoids. To assess the normal development of adenoids and to understand their role in the nasopharyngeal airway compromise, the adenoids of 290 children who had MR examination for other reasons were measured by midsagittal Ti-weighted spin-echo MR image. The maximal thickness of adenoids (A), anteroposterior depth of the nasopharynx (N) and the adenoid-nasopharynx (A/N) ratios were obtained using this method. The results showed that of the infants under the age of 3 months only 2 out of 11 adenoids (18%) could be identified. By 4 months of age, adenoids could be identified in 6 of 8 infants (75%). After 5 months of age, all adenoids were well demonstrated by MR imaging. The adenoids developed rapidly during infancy and reached a plateau between 2- and 14 years of age with a mean thickness ranging from 10.7 to 12.2 mm. Finally, the adenoids regressed rapidly after 15 years old. The A/N ratios, which could be used to assess the airway compromise, had a plateau between 2- and 7 years of age. After that, with the steady growth of the nasopharynx, the possible role of adenoid in airway compromise will become increasingly less significant in later childhood. |
本系統中英文摘要資訊取自各篇刊載內容。