Verifi Prenatal Test Services

Verifi和Verifi Plus产前检测通过抽取一次孕妇外周血,安全、非侵入性的为怀孕10周以上胎儿筛查最常见的染色体异常。Verifi提供最具创新的测序—快速回复时间、失败率低和准确的结果。1

对于常见胎儿非整倍体筛查,Verifi与传统筛查方法相比其优势在于减少假阳性率(提高特异性)并提高阳性预估值(PPV)1,2 Verifi失败率业内最低仅为0.1%。1,3,4了解NIPT评价检测性能指标和查看Verifi指标

医生通过合作实验室网站预订Illumina服务。样本在CLIA-批准、CAP批准的实验室处理3-5天。医生将会收到用于和患者讨论结果和下一步治疗方案的报告。

Verifi Prenatal Test

Verifi Prenatal Test是一种非侵入性筛查方法,用于在单胎或双胎妊娠中筛查13号、18号和21号常染色体以及性染色体非整倍体。

要点:
  • 优于血清筛查(更少的假阳性)2,5,6
  • 快速回复时间(3-5 天)
  • 失败率低和准确性高1
  • 检测适用范围:
    • 高龄产妇 (> 35 岁)
    • 血清筛查阳性
    • 超声异常
    • 病史表明特定染色体非整倍体风险增加
    • 低风险/孕妇焦虑
    筛查:
    • 21三体(唐氏综合征)
    • 18三体(爱德华综合征)
    • 13三体(巴陶氏综合征)
    • 胎儿性染色体非整倍体

    Verifi Plus Prenatal Test

    Verifi Plus Prenatal Test含所有Verifi Prenatal Test和额外的panel。通过非侵入性方式筛查标准染色体非整倍体、某些微缺失和所有的常染色体。扩展panel(微缺失或所有常染色体)为单胚胎妊娠可选附加项目。

    要点:

    Verifi Plus比Verifi筛查更多的染色体疾病。

    检测适用范围:

    出现超声异常的、拒绝侵入检测的女性。

    可选附加检测包括:
    • 性染色体非整倍体
      • X单体(特纳综合征)
      • XXX (X三体)
      • XXY (克氏综合征)
      • XYY (雅各布综合征)
    • 扩展的常染色体三体
      • 所有染色体
    • 微缺失综合征
      • 1p36 缺失
      • 4p-(沃夫-贺许宏氏综合征)
      • 5p- (猫叫综合症)
      • 15q11 (普拉德-威利综合征/安格尔曼综合征)
      • 22q11 缺失 (先天性胸腺发育不全)

    有关Illumina临床服务实验室的问题,请致电 (858) 736-8080 或 (855) 266-6563 (免费), 或 提交需求.

    参考文献
    1. Taneja PA, Snyder HL, de Feo E, et al. Noninvasive prenatal testing in the general obstetric population: clinical performance and counseling considerations in over 85 000 cases. Prenat Diagn. 2016;36(3):237-243.
    2. Bianchi DW, Parker RL, Wentworth J, et al. DNA sequencing versus standard prenatal aneuploidy screening. N Engl J Med. 2014;370(9):799-808.
    3. McCullough RM, Almasri EA, Guan X, et al. Non-invasive prenatal chromosomal aneuploidy testing--clinical experience: 100,000 clinical samples. PLoS One. 2014;9(10):e109173.
    4. Ryan A, Hunkapiller N, Banjevic M, et al. Validation of an enhanced version of a single-nucleotide polymorphism-based noninvasive prenatal test for detection of fetal aneuploidies. Fetal Diagn Ther. 2016;40(3):219-223.
    5. Gregg AR, Skotko BG, Benkendorf JL, et al. Noninvasive prenatal screening for fetal aneuploidy, 2016 update: a position statement of the American College of Medical Genetics and Genomics. Genet Med. 2016;18(10):1056-1065.
    6. Practice Bulletin No. 163: Screening for Fetal Aneuploidy. Obstet Gynecol. 2016;127(5):979-981.

    The Verifi Prenatal Test was developed by, and its performance characteristics were determined by Verinata Health, Inc. (VHI), a wholly owned subsidiary of Illumina, Inc. The VHI laboratory is CAP-accredited and certified under the Clinical Laboratory Improvement Amendments (CLIA) as qualified to perform high complexity clinical laboratory testing. It has not been cleared or approved by the U.S. Food and Drug Administration.