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Trans Vaginal Sonography |
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specially designed probes,
ultrasound scanning |
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becoming indispensible |
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First trimester using
the vaginal scan. |
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Transvaginal Scans With specially
designed probes, ultrasound scanning can be done with the probe placed
in the vagina of the patient. This method usually provides better
images (and therefore more information) in patients who are obese
and/ or in the early stages of pregnancy. The better images are the
result of the scanhead's closer proximity to the uterus and the higher
frequency used in the transducer array resulting in higher resolving
power. Fetal cardiac pulsation can be clearly observed as early as
6 weeks of gestation.
Vaginal scans are also becoming indispensible in the early diagnosis
of ectopic pregnancies. An increasing number of fetal abnormalities
are also being diagnosed in the first trimester using the vaginal
scan. Transvaginal scans are also useful in the second trimester in
the diagnosis of congenital anomalies. Read one of my presentations
at OBGYN.net-Ultrasound.
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