CN113577314B - 一种复合型锥形束ct增强造影剂及其配置方法 - Google Patents

一种复合型锥形束ct增强造影剂及其配置方法 Download PDF

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CN113577314B
CN113577314B CN202110957963.0A CN202110957963A CN113577314B CN 113577314 B CN113577314 B CN 113577314B CN 202110957963 A CN202110957963 A CN 202110957963A CN 113577314 B CN113577314 B CN 113577314B
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林梓桐
胡子洋
王铁梅
高安天
曹丹彤
觧鑫
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Abstract

本发明公开涉及口腔颌面医学影像技术技术领域,具体为一种复合型锥形束CT增强造影剂,包括X线显像剂碘化钠、蒸馏水、亲水性药用渗透剂二甲基亚砜、有机溶剂和溶菌剂乙醇、亲油性渗透剂和矫味剂乙酸乙酯,该造影剂的成像组分含量可调节,可与牙体组织及各类充填物的不同密度相鉴别,从而进一步提高CBCT对于牙隐裂诊断的准确性、灵敏度和特异性;一种复合型锥形束CT增强造影剂配置方法,包括以下步骤:首先将25克99%的二甲基亚砜缓慢溶解于10g蒸馏水中,搅拌溶解至均质溶液,然后加入99%的乙醇10克,搅拌溶解至均质溶液,再加入99%的乙酸乙酯10克,搅拌至均质溶液,最后加入99%的碘化钠30g溶解至均质溶液,由上述方法配置处的造影剂与泛影葡胺相比,显影率及显影深度均有明显提升。

Description

一种复合型锥形束CT增强造影剂及其配置方法
技术领域
本发明涉及口腔颌面医学影像技术技术领域,具体为一种复合型锥形束CT增强造影剂及其配置方法。
背景技术
牙隐裂是继牙周病、龋病引起成年人牙齿缺失的三大主要病因之一。目前广义隐裂牙被分为5类:牙釉质表面裂纹、牙尖折裂、隐裂牙、纵折牙和垂直性牙根折裂,其中的第三类狭义隐裂牙特指从牙冠咬合面向根尖方向延伸的折裂线,第四类隐裂牙是指从牙冠向牙根方向延续的折裂牙,第五类VRF特指牙根发生折裂的牙齿。
隐裂的诊断对于合理的治疗方案的设计,预后的判断有着重要的临床意义,但是由于隐裂牙裂纹细小隐匿,不同临床阶段临床表现的多种多样,和许多牙科疾病相重叠,一直以来,隐裂牙的诊断都是一个让临床深感困扰的难题。近年来,口腔锥形束CT由于极高的空间分辨率为隐裂牙的诊断提供了可能,但是由于隐裂牙裂纹细小,加上不同的CBCT扫描体系、充填物伪影等因素,现有CBCT牙隐裂诊断的准确性,灵敏度和特异性尚有很大提升的空间。
发明内容
由于在体隐裂牙裂纹复杂,且裂纹内存在高粘度的唾液,疏水性强的细菌生物膜,食物残渣,牙髓腔周围的炎性细胞等多种物质,因此造影剂在在体隐裂纹内的渗透远较人造裂纹复杂,其渗透能力和渗透效果均有待提升。
为了解决上述技术问题,本发明提供了如下的技术方案:
一种复合型锥形束CT增强造影剂,X线显像剂、蒸馏水、亲水性药用渗透剂、有机溶剂和溶菌剂、亲油性渗透剂和矫味剂。
作为本发明的一种优选技术方案,X线显像剂为碘化钠,亲水性药用渗透剂为二甲基亚砜,有机溶剂和溶菌剂均为乙醇,亲油性渗透剂和矫味剂均为乙酸乙酯,同时该造影剂的成像组分含量可调节,可与牙体组织及各类充填物的不同密度相鉴别,从而进一步提高CBCT对于牙隐裂诊断的准确性,灵敏度和特异性,并提升裂纹深度显示的准确性。
一种复合型锥形束CT增强造影剂配置方法,包括以下步骤:
S1、首先将25克二甲基亚砜缓慢溶解于10g蒸馏水中,搅拌溶解至均质溶液;
S2、然后加入乙醇10克,搅拌溶解至均质溶液;
S3、再加入乙酸乙酯10克,搅拌至均质溶液;
S4、最后加入碘化钠30g溶解至均质溶液,即得到可用于在体隐裂牙诊断的复合型锥形束CT增强造影剂。
作为本发明的一种优选技术方案,所述S1中,二甲基亚砜的纯度为99%;所述S2中,乙醇的纯度为99%;所述S3中,碘化钠的纯度为99%;所述S4中,碘化钠的纯度为99%。
本发明的有益效果是:
该种复合型锥形束CT增强造影剂与市场上已有的X线造影剂泛影葡胺相比,显影率及显影深度均有明显提升;通过对10颗拔下来的人隐裂牙的实验显示,该复合造影剂15分钟裂纹检测率达100%,对隐裂纹是否到达髓腔检测效果达15分钟50%,30分钟70%,60分钟85%;对比泛影葡胺15分钟裂纹检测率10%,对隐裂纹是否到达髓腔检测效果15分钟0%,30分钟5%,60分钟5%,可见该造影剂无论是在裂纹显示率还是裂纹显示深度方面都明显优于泛影葡胺。
附图说明
附图用来提供对本发明的进一步理解,并且构成说明书的一部分,与本发明的实施例一起用于解释本发明,并不构成对本发明的限制。在附图中:
图1是泛影葡胺在15分钟、30分钟、60分钟时体拔除隐裂牙隐裂纹的显影情况示意图;
图2本发明复合造影剂在15分钟、30分钟、60分钟时隐裂纹显影情况示意图;
图3是本发明实施例1中牙冠的显影情况示意图;
图4是本发明实施例2中牙根的显影情况示意图一;
图5是本发明实施例2中牙根的显影情况示意图二;
图6是本发明实施例2中牙根的显影情况示意图三。
具体实施方式
以下结合附图对本发明的优选实施例进行说明,应当理解,此处所描述的优选实施例仅用于说明和解释本发明,并不用于限定本发明。
实施例1
如图1和图2所示,一种复合型锥形束CT增强造影剂,包括:X线显像剂碘化钠、蒸馏水、亲水性药用渗透剂二甲基亚砜、有机溶剂和溶菌剂乙醇、亲油性渗透剂和矫味剂乙酸乙酯。
一种复合型锥形束CT增强造影剂配置方法,包括以下步骤:
首先将25克99%的二甲基亚砜缓慢溶解于10g蒸馏水中,搅拌溶解至均质溶液,然后加入99%的乙醇10克,搅拌溶解至均质溶液,再加入99%的乙酸乙酯10克,搅拌至均质溶液;最后加入99%的碘化钠30g溶解至均质溶液,得到可用于在体隐裂牙诊断的复合型锥形束CT增强造影剂。
为了清晰了解本发明配置的造影剂造影效果,特做出泛影葡胺和本发明配置的造影剂造影效果对比实验:
通过对10颗拔下来的人隐裂牙的实验,本发明配置的造影剂15分钟裂纹检测率达100%,对隐裂纹是否到达髓腔检测效果达15分钟50%,30分钟70%,60分钟85%。对照例中,泛影葡胺15分钟裂纹检测率10%,对隐裂纹是否到达髓腔检测效果15分钟0%,30分钟5%,60分钟5%。显而易见的是,本发明配置的造影剂,无论是在裂纹显示率还是裂纹显示深度方面都明显优于泛影葡胺。
实施例2
如图3所示,首先将25克99%的二甲基亚砜缓慢溶解于10g蒸馏水中,搅拌溶解至均质溶液,然后加入99%的乙醇10克,搅拌溶解至均质溶液,最后加入99%的乙酸乙酯10克,搅拌至均质溶液;最终得到可用于在体隐裂牙诊断的复合型CT增强造影剂。
使用软毛刷蘸取复合型CT增强造影剂,将其涂布在在体拔除的隐裂牙裂纹表面,等待1小时,待造影剂渗透到裂纹内后,进行CBCT扫描,判断牙冠有无裂纹及裂纹深度。
实施例3
如图4-图6所示,首先将35克99%的碘化钠溶解于25克99%的二甲基亚砜中,搅拌溶解至均质溶液,然后加入99%的乙醇10克,搅拌溶解至均质溶液,最后加入99%的乙酸乙酯10克,搅拌至均质溶液;最终得到可用于在体隐裂牙诊断的复合型CT增强造影剂。
收集在体拔除的牙根纵裂牙,去除髓腔内充填物,使用管容量为1.8ml的滴管吸取造影剂,将造影剂其的滴入髓腔内,等待15分钟后,待造影剂渗透到裂纹内后,进行CBCT扫描,判断牙根上有无裂纹。
由图1可知,在体条件下的隐裂纹远比人造隐裂纹复杂,裂纹前沿的微裂纹可达10余微米,且裂纹内存在高粘度的唾液(静止状态下高于20mm2/s),疏水性强的细菌生物膜,食物残渣,牙髓腔周围的炎性细胞等多种物质,这使得泛影葡胺在在体条件下的渗透非常困难,显影效果差。由图2-6可知,本发明针对在体隐裂纹的多种特点,研发的可用于在体隐裂牙诊断的复合型锥形束CT增强造影剂,可对在体隐裂牙达到良好的渗透和显影效果,可用于在体隐裂牙增强显影。
最后应说明的是:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (1)

1.一种复合型锥形束CT增强造影剂,其特征在于,包括:
X线显像剂、蒸馏水、亲水性药用渗透剂、有机溶剂和溶菌剂、亲油性渗透剂和矫味剂;
所述的X线显像剂为碘化钠,亲水性药用渗透剂为二甲基亚砜,有机溶剂和溶菌剂均为乙醇,亲油性渗透剂和矫味剂均为乙酸乙酯;
如上所述的复合型锥形束CT增强造影剂,其配置方法,包括以下步骤:
S1、首先将25克二甲基亚砜缓慢溶解于10g蒸馏水中,搅拌溶解至均质溶液;所述S1中,二甲基亚砜的纯度为99%;
S2、然后加入乙醇10克,搅拌溶解至均质溶液;所述S2中,乙醇的纯度为99%;
S3、再加入乙酸乙酯10克,搅拌至均质溶液;所述S3中,乙酸乙酯的纯度为99%;
S4、最后加入碘化钠30g溶解至均质溶液,即得到可用于在体隐裂牙诊断的复合型锥形束CT增强造影剂;所述S4中,碘化钠的纯度为99%。
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