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The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) recommends that pregnant women have routine obstetric ultrasounds between 18 weeks' and 22 weeks' gestational age (the anatomy scan) in order to confirm pregnancy dating, to measure the fetus so that growth abnormalities can be recognized quickly later in pregnancy ...
A lithopedion (also spelled lithopaedion or lithopædion; from Ancient Greek: λίθος "stone" and Ancient Greek: παιδίον "small child, infant"), or stone baby, is a rare phenomenon which occurs most commonly when a fetus dies during an abdominal pregnancy, [1] is too large to be reabsorbed by the body, and calcifies on the outside as ...
Sonosalpingography (SSG), also known as Sion test, is a diagnostic procedure primarily used for evaluating patency of fallopian tubes. [1] [2] It was introduced as a screening procedure for infertility investigations. [3] It is becoming more popular among practitioners due to absence of side effects. [2]
Ultrasound imaging is useful for detecting stones, for example kidney stones or gallstones, because they create a clearly visible ultrasound shadow behind the stone. [ citation needed ] Ultrasonography can be used to guide procedures such as treatment for kidney stones with extracorporeal shock wave lithotripsy , needle biopsies or paracentesis ...
A biophysical profile (BPP) is a prenatal ultrasound evaluation of fetal well-being involving a scoring system, [1] with the score being termed Manning's score. [2] It is often done when a non-stress test (NST) is non reactive, or for other obstetrical indications. The "modified biophysical profile" consists of the NST and amniotic fluid index ...
There are three main types: [2] open fetal surgery, which involves completely opening the uterus to operate on the fetus; minimally invasive fetoscopic surgery, which uses small incisions and is guided by fetoscopy and sonography; and percutaneous fetal therapy, which involves placing a catheter under continuous ultrasound guidance.
Endometrial polyps can be detected by vaginal ultrasound (sonohysterography), hysteroscopy and dilation and curettage. [3] Detection by ultrasonography can be difficult, particularly when there is endometrial hyperplasia (excessive thickening of the endometrium). [ 2 ]
It is preferred over abdominal ultrasonography in the diagnosis of ectopic pregnancy. [2] It also can be used to evaluate patients with post-menopausal bleeding. [3] The finding on transvaginal ultrasound of a thin endometrial lining gives the physician a 99% negative predictive value that the patient does not have endometrial cancer. [3]