This document discusses ultrasound applications in obstetrics and gynecology. It covers obstetric ultrasound techniques for assessing the fetus such as nuchal translucency measurements in the first trimester and fetal anatomy scans. Gynecological ultrasound applications described include identifying ovarian cysts, fibroids, and other pelvic abnormalities. Transducer selection depends on the structure being imaged. Guidelines are provided for estimating fetal weight based on measurements. Fetal lie, presentation, and biometry charts are also included.

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Sirpa Falk
MCR EMEA BL US
August 24, 2011
Introduction to Ultrasound

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Introduction to Ultrasound
Clinical Applications
Obstetrical Imaging

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Introduction to Ultrasound
Obstetrical Imaging Ultrasound
Obstetrical Imaging Transducers
Which Transducer?
Variable - dependant upon what you are imaging

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Introduction to Ultrasound
Obstetrical Imaging – First Trimester

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Introduction to Ultrasound
Obstetrical Imaging – Nuchal Translucency

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Size
Position
Right and left correct
Plumbing
Flow
Introduction to Ultrasound
Obstetrical Imaging – Fetal Heart
All with a moving target!

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Introduction to Ultrasound
Obstetrical Imaging
Ascending and descending aorta
Placenta
Umbilical Cord

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• Facial Views
– Fetal profile
– Fetal nose and lips
Introduction to Ultrasound
Obstetrical Imaging

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Introduction to Ultrasound
Obstetrical Imaging
• Fetal Spine

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BPD
(mm)
FL
(mm)
HC
(mm)
AC
(mm)
12 21 8 70 56
13 25 11 84 69
14 28 15 98 81
15 32 18 111 93
16 35 21 124 105
17 39 24 137 117
18 42 27 150 129
19 46 30 162 141
20 49 33 175 152
21 52 36 187 164
22 55 39 198 175
23 58 42 210 186
24 61 44 221 197
25 64 47 232 208
26 67 49 242 219
27 69 52 252 229
28 72 54 262 240
29 74 56 271 250
30 77 59 280 260
31 79 61 288 270
32 82 63 296 280
33 84 65 304 290
34 86 67 311 299
35 88 68 318 309
EFW =
• BPD, FL, HC, AC
• BPD, FL, AC
• FL, AC

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Transverse Cephalic
Breech Oblique

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Q1 Q2
Q3 Q4

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Introduction to Ultrasound
Clinical Applications
Gynecological Imaging

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Introduction to Ultrasound
Clinical Applications
Gynecological Imaging

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Introduction to Ultrasound
Gynecological Imaging - Anatomy

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Introduction to Ultrasound
Gynecological Imaging Ultrasound
Obstetrical Imaging Transducers
Which Transducer?
Variable - dependant upon what you are imaging

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Introduction to Ultrasound
Gynecological Imaging
• Pathology:
– polyps
– cysts
– fibroids
– endometerial
abnormalities
– cervical
abnormalities
– ovarian
abnormalities

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• Cervical Cyst
Introduction to Ultrasound
Gynecological Imaging

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Introduction to Ultrasound
Gynecological Imaging

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• Ovarian cysts
Introduction to Ultrasound
Gynecological Imaging