Doctor insights on:
Accurate Ultrasound Breast
An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more
Earlier the better: In the first trimester (< 14 wks) it's accurate within days. The later in pregnancy, the more inaccurate it is to date a pregnancy. Roughly, if an ultrasound differs by a week in the first trimester, dates are changed. 2 weeks for second trimester & 3 wks difference in the third trimester to change the due date compared to an lmp due date. Always keep the earliest us edc, it should never change. ...Read moreSee 1 more doctor answer
Depends: On the size if the baby. Transabominally is fine as the baby increases in size. If it is really small then tv is bettet. ...Read more
No: Testicular us looks for abnormalities of the testicle. Transrectal us is used to evaluate either the anal sphincter mechanism or stage rectal rumors. ...Read more
No known stats.: First, this is not the ultrasound usually done today, transvaginal is. This is done with a manual pelvic exam and ca-125 levels. Second, there has not been a prominent study that I have seen that determines the accuracy of diagnosis by this test. The most accurate way is probably surgery, where specimens can be taken and examined under a microscope to see if it is cancer. ...Read moreSee 1 more doctor answer
Generally, yes.: Scrotal ultrasounds (us) are very sensitive for determining the presence of testicular masses, cysts, and relatively sensitive for detecting infection. Doppler studies done by us are very good at determining blood flow and evaluating torsion. Though us can make a diagnosis of tumor, it usually cannot reliably predict the type of cancer. The experience of the technician also makes a difference. ...Read more
Depends: The precision of an ultrasound depends somewhat on the equipment, the technician, the interpreter & the reason for study. If the scan is done to verify the placental location, fetal position & head size(to verify dates), simple equipment works ok. Specific things about baby like heart anatomy, facial features and the like, require a skilled technician using special equipment & interpretation. ...Read moreSee 1 more doctor answer
Yes: U/s is not a great screening test but an extension of the physical exam. It is very dependent upon the person (breast surg vs radiology tech?) doing the u/s, where they place the probe, how fast they move the probe, how much attention they pay to the screen, etc. U/s performed by a skilled breast surgeon can be very helpful and also used to guide sampling for definitive diagnosis and treatment. ...Read moreSee 2 more doctor answers
Situational: For screening: mammograms are the most valuable. For diagnosis (palpable mass, mammographic density): ultrasound can be very helpful. Mris are the most sensitive test for breast cancer, but their prohibitive cost makes this unaffordable for large-population screening. It is best used in high-risk patients, those with very dense breast tissue, and for evaluating the extent of a known breast cancer. ...Read moreSee 3 more doctor answers
Very: When ultrasounds are used to evaluate a palpable lump or a mammographic abnormality, a directed ultrasound can very accurately differentiate a benign tumor from a malignant one. Nevertheless, it is best to not rely exclusively on an ultrasound and to proceed to tissue diagnosis via biopsy, especially for women over age 40. ...Read moreSee 1 more doctor answer
How accurate is the transabdomen and transvaginal ultrasound for early detection of ovarian cancer?
Not very: Unfortunately, there is no good screening for ovarian cancer. Ultrasound will show a mass if there is one and may help characterize it as likely benign or malignant. This, with blood test and recognizing symptoms, might help with managment of a mass that is already there, but not in early detection. Notify your doctor if you have persistent bloating, change in bowel or bladder habits, or pain. ...Read moreSee 1 more doctor answer
Give indication: Xr, and anything without direct visualization give an indication as to what is suspected. The symptoms, the exam and the history makes a doctor arrive at a diagnosis as the most likely thing. If in doubt, then direct visualization needed. I hope that gives you reassurance. ...Read more
Not exactly: while an ultrasound in the third trimester can give you an idea based on size of the fetus, they are only accurate +/- 3 weeks. If the fetus is having growth restriction or is large for age, they will be off. If there is a fluid problem, they will be off. The best time in a pregnancy to obtain dating via ultrasound is the first trimester. Good luck! ...Read moreSee 1 more doctor answer
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