בדיקות אולטרסאונד במהלך ההריון “The Israeli style” ד"ר בועז ווייס מומחה למיילדות וגינקולוגיה, רפואת העובר.

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Presentation transcript:

בדיקות אולטרסאונד במהלך ההריון “The Israeli style” ד"ר בועז ווייס מומחה למיילדות וגינקולוגיה, רפואת העובר.

ברור גיל ההריון שבוע 5-6

ברור גיל ההריון והדמיית הדופק

מיקום ההריון

הריון תוך- או חוץ רחמי

ומספר העוברים הוא...

מספר העוברים.. מספר השליות... תאומים זהים ?

תאומים מונוכוריאלים

תאומים ביכוריאלים= שתי שליות

11-14 weeks

שקיפות עורפית

הדגמת עצם האף

Detection rate for Down’s Syndrome NT – DR 70% for FPR 5% Combined Test (NT+PAPP-A+βhCG) DR 90% for FPR of 5% NT + NB + Combined – DR 90% for FPR 2.5%

Detection Rate of Fetal Anomalies DR by >30% DR by early scan ->44% DR by 2 nd trimester scan ->74% DR of 51.6% by TVS (14-16 weeks) and 84.4% by 2 nd trimester scan Weisz et al Guariglia et al. 2000

סקירה מוקדמת שבועות

סקירה מוקדמת Advantage –Early detection….. Disadvantage –Limited diagnosis –Physiological markers ? –Too early to be detected -> Developmental anomalies ? CPC… CNS, GIT, Kidneys…

סקירה מאוחרת: שבועות

2 nd Trimester Anatomical Scan weeks. Trans Abdomen Not 100% DR –Major Anomalies –Soft Markers Echogenic Intracardiac Focus (X 1.1-4) RPD (X 1/0-1.5) NF (X 9.8) SF (X 1.6) Echo. Bowel (X3) …

Genetic Sonogram (1) Multiple genetic sonograms are likely to be more sensitive - > Increased DR. No. Markers % in T21 % in Control LR Major Anomaly

Genetic Sonogram (2) Multiple genetic sonograms are likely to be more sensitive - > Increased DR. Marker Structural defect2 Nuchal fold2 Hyper. Bowel1 Short Humerus1 Short Femur1 EIF1 Pyelectasis1 Benacerraf Index system: Karyotype for Index Score≥2 DR 73% for T21 DR 83% for T18 FPR 4%

Genetic Sonogram (2) Multiple genetic sonograms are likely to be more sensitive - > Increased DR. Nyberg Age adjusted US Risk Assessment (AAURA): LR DR 68.3% for T21 FPR 12.5% MarkerLR Structural defect25 Nuchal fold11 Hyper. Bowel6.7 Short Humerus5 Short Femur1.5 EIF1.8 Pyelectasis1.5

עצם אף בסקירה מאוחרת

סקירה מאוחרת

הדגמת כפיס המוח.

בדיקה התפתחותית שב' 30-32

3 rd anatomical scan ? Progressive anomalies - –Brain –Kidneys –GIT –Heart ?

הערכת משקל BPD HC AC FL Different Formula

בדיקות דופלר בעורק הטבור

בדיקות דופלר- MCA במוח MCA Ductus Venosus

MCA- Redistribution

דוקטוס וונוזוס - DV S D a

DV

f 0 - original frequency of us beam f d - reflected frequency V – velocity of blood cells c – speed of sound MCA-PSV

איבחון אנמיה עוברית על ידי מדידת זרימות דם במוח

Moderate or severe anemia Mild or no anemia Hydrops

בהצלחה