Update

Hello

 

I never write on here ever! I need to start blogging more I always have so much to say and never do.

I recently got a new job and I've been very busy, it keeps me busy and tired so I never have a chance to blog. My new thing now is to watch Grey's Anatomy off my laptop it keeps me entertained. I feel like going out tonight but I have no idea where to go. blah i guess that calls for another night in watching Grey's Anatomy :) talk to you guys later.

Breast Ultrasound

What is Breast Ultrasound?
In dense breast tissue, the ultrasound can create an image that often allows a doctor to distinguish between a fluid-filled cyst and a solid mass. Breast ultrasound can image several different types of breast conditions, including both benign (non-cancerous) and malignant (cancerous) lesions.
Ultrasound is frequently used to evaluate breast abnormalities that are found with screening mammography or diagnostic mammography or during a physician performed clinical breast exam. Mammograms do not make this distinction as accurately, though they are better than ultrasounds at detecting microcalcifications (which can be an early sign of breast cancer). Often, breast abnormalities that are suspected to be cancerous
after a mammogram can be identified as benign with a follow-up ultrasound examination. 
Benign breast abnormalities can include cysts and plugged milk ducts. Ultrasound imaging requires a licensed sonogram technician  who can examine suspect areas of the breast by positioning the transducer in several positions. The operator must decide when to reposition the transducer, or the patient, in order to get the best images.

Understanding Ultrasound Physics

The six electrical components of the system are connected together so that information can be transferred to and from each individual part.

A Master synchronizer coordinates all of the components of an ultrasound system. Some sonographers do not consider the synchronizer to be a separate component. Whether or not specifically identified, all of the modules of the system must function in a coordinated manner.

A transducer converts electrical energy into acoustic energy during transmission,and turns returning energy into electrical energy during reception.

A pulser (transmitter) controls the electrical signals sent to the transducer for sound wave generation. The pulser determines the following: PRF, pulse amplitude, pulse repletion period, the firing pattern for phased array systems, and frequency for CW systems.

A receiver and image processor receives the electrical signal produced by the PZT from the returning echoes and creates an image for presentation on an appropriate display.

A display is associated with the visual presentation of the processed data. The display may be a CRT (television), a transparency, a spectral plot, or a number of other formats or devices.

Storage devices or "media" are used to permanently archive the US studies. Storage material consists of video tape, paper, film, transparent film, and computer discs.

Menstrual Cycle

This is my attempt in explaining the menstrual cycle. I decided to write about this since I must learn all of it for my future job.



It all starts with the Pituitary glands, they  secrete a hormone that flows through the blood stream and reaches the ovaries, creating a follicular cyst, surrounded by eggs and secreting hormones. Then the pituitary gland secretes another hormone called the LH(Luteal Hormone). There is a peak of the hormone level that will release the egg. The egg is then sucked in by the fallopian outer edge. It takes 5-6 days for the egg to travel to get to the uterus. Back to the over, after the follicle has ruptured out of it, it is converted into this yellowish body called the corpus luteum. Cells of the corpus luteum secrete the hormone called progesterone, which bring about important changes to the lining of the endometrium making it suitable for fertilized egg. If there is no fertilized egg then the endometrium lining will shed causing the menstrual bleeding.

Transducer

Today I will explain to you how a transducer works.

For a Sonogram exam the technician uses a device called a transudcer this transducer emits pulse waves into the body. Inside the transducer there is a part called the "backing material" this backing material holds back the electricity that is coming in from the wire, then it is released and hits the crystals and causes a phenomenon called the piezoelectric effect which then emits a pulse into the body as a sound wave. Before entering the body it must pass through the matching layer which is placed infront of the crystals.The purpose of the matching layer is to try to maximize transmission of ultrasound from the crystals to the patient. Once the sound wave has reached a boundary it will return to the transducer and it will be converted back into electric energy then it will form an image.

And back.

Ive been preparing myself for the physics exam. Once I get to chapter 15 which will be after two classes I have to sign up for the exam online. I can not wait I feel as if I know so much more now thanks to the tutoring that I can't wait to sit for the exam. The exam will have 120 questions. I like to practice at home with this physics program I have called "Davies" it is very good and helps me a lot. I take quizes and see how I've  progressed. EXCITED! I need to be working as a tech before 25 that is my goal!! woo lets get it!

Happy

Loves him, he always makes my day.