中国全科医学 ›› 2023, Vol. 26 ›› Issue (03): 308-312.DOI: 10.12114/j.issn.1007-9572.2022.0282

• 论著 • 上一篇    下一篇

新生儿肺炎磁共振SS_TSE与改良腹部T2WI序列的特征分析

蓝海龙1, 宁观媛1, 黄向民2, 肖叶玉3,*()   

  1. 1.524500 广东省湛江市,吴川市人民医院医学影像中心
    2.524500 广东省湛江市,吴川市人民医院新生儿科
    3.510000 广东省广州市中西医结合医院医学影像科
  • 收稿日期:2022-04-20 修回日期:2022-07-08 出版日期:2023-01-20 发布日期:2022-08-25
  • 通讯作者: 肖叶玉
  • 蓝海龙,宁观媛,黄向民,等.新生儿肺炎磁共振SS_TSE与改良腹部T2WI序列的特征分析[J].中国全科医学,2023,26(3):308-312.[www.chinagp.net]
    作者贡献:蓝海龙负责文章的构思与设计,统计学处理,结果分析与解释,撰写论文;宁观媛负责磁共振数据收集;黄向民负责提供临床病例;肖叶玉对文章整体负责,监督管理,以及论文修订、基金支持。
  • 基金资助:
    广东省自然科学基金资助项目(2018A0303070002); 广东省中医药局科研项目(20202141); 广州市科技计划项目(202102080665)

Sequences of SS_TSE and Modified Abdominal T2WI Magnetic Resonance Imaging in the Diagnosis of Neonatal Pneumonia

LAN Hailong1, NING Guanyuan1, HUANG Xiangmin2, XIAO Yeyu3,*()   

  1. 1.Medical Imaging Center, Wuchuan People's Hospital, Zhanjiang 524500, China
    2.Department of Neonatology, Wuchuan People's Hospital, Zhanjiang 524500, China
    3.Medical Imaging Department, Guangzhou Hospital of Integrated Traditional and West Medicine, Guangzhou 510000, China
  • Received:2022-04-20 Revised:2022-07-08 Published:2023-01-20 Online:2022-08-25
  • Contact: XIAO Yeyu
  • About author:
    LAN H L, NING G Y, HUANG X M, et al. Sequences of SS_TSE and modified abdominal T2WI magnetic resonance imaging in the diagnosis of neonatal pneumonia [J] . Chinese General Practice, 2023, 26 (3) : 308-312.

摘要: 背景 目前临床普遍使用X线检查甚至螺旋CT诊断新生儿肺炎,导致医源性辐射伤害;而应用磁共振诊断新生儿肺炎可减少医源性辐射伤害,但相关研究较少。 目的 基于1.5 T低场强磁共振单次激励快速自旋回波(SS_TSE)序列与改良腹部T2WI两个序列在新生儿肺炎诊断中的应用,探讨在基层医院开展该检查项目的可行性。 方法 选取2020年1—11月在吴川市人民医院确诊新生儿肺炎且行磁共振检查的19例患儿为研究对象,分析其磁共振SS_TSE序列与改良腹部T2WI序列的主观评分、病灶的信号强度(SI病灶)、肺的信号强度(SI肺)、肺的噪声(SD肺)、图像信噪比(SNR)和病灶的信号强度比(SIR)6个参数。 结果 SS_TSE序列主观评分2.2(2.0,2.8)分、SI病灶(505.0±102.5)分、SI肺(243.5±32.0)分、SD肺(21.8±6.7)分、SNR(12.0±3.1)分、SIR 2.1(2.0,2.2)分;T2WI序列的主观评分2.7(2.0,3.3)分、SI病灶(293.1±129.6)分、SI肺(99.7±40.3)分、SD肺(19.0±7.6)分、SNR(5.6±2.3)分、SIR 3.1(2.6,3.2)分。综合SS_TSE与T2WI序列,均诊断为新生儿肺炎。 结论 病灶在SS_TSE序列的亮度较高,图像的客观清晰度较好;T2WI序列的主观清晰度高,病灶与背景的信号差异较大,有利于观察病灶边界;两种序列在诊断新生儿肺炎优势互补。利用1.5 T低场强磁共振亦可开展新生儿肺炎磁共振检查项目,从而减少患儿医源性辐射伤害。

关键词: 肺炎, 婴儿,新生,疾病, 辐射, 磁共振成像, 基层医院, 呼吸道感染

Abstract:

Background

In the diagnosis of neonatal pneumonia, the possibility of iatrogenic injury caused by magnetic resonance imaging (MRI) may be lower than that by widely used X-ray and even computed tomography scan. However, there are few studies on the application of MRI in the diagnosis of neonatal pneumonia.

Objective

To explore the feasibility of using MRI for the diagnosis of neonatal pneumonia in primary care based analyzing the application of SS_TSE and modified abdominal T2WI sequences at 1.5 Tesla for the diagnosis of this illness.

Methods

Nineteen neonates diagnosed with pneumonia by MRI were selected from Wuchuan People's Hospital from January to November 2020. Six parameters under SS_TSE and modified abdominal T2WI sequences including subjective MR score, signal intensity of the lesion (SI lesion) , lung signal intensity (SI lung) , lung noise (SD lung) , calculated image signal-to-noise ratio (SNR) and lesion signal intensity ratio (SIR) were statistically analyzed.

Results

The values of these six parameters of SS_TSE sequence were 2.2 (2.0, 2.8) , (505.0±102.5) , (243.5±32.0) , (21.8±6.7) , (12.0±3.1) , and 2.1 (2.0, 2.2) , respectively. And The values of subjective score, SI lesion, SI lung, SD lung, SNR and SIR of T2WI sequence were 2.7 (2.0, 3.3) , (293.1±129.6) , (99.7±40.3) , (19.0±7.6) , (5.6±2.3) , and 3.1 (2.6, 3.2) , respectively. Based on the combination of SS_TSE and T2WI images, the diagnoses for all cases were made.

Conclusion

The brightness of the lesions in SS_TSE sequence is higher, with better objective definition of the images. T2WI sequence has higher subjective definition, and the signal of the lesions was markedly different from the background, which is helpful to observe the border of the lesions. SS_TSE and T2WI sequences are complementary in the diagnosis of neonatal pneumonia. In a word, it is feasible to apply MRI for the diagnosis of neonatal pneumonia at 1.5 Tesla to reduce the possibility of iatrogenic injury.

Key words: Pneumonia, Infant, newborn, diseases, Radiation, Magnetic resonance imaging, Grass-roots hospitals, Respiratory tract infections