Myoview

What is Myoview?

Technetium (99mTc) tetrofosmin is a drug used in nuclear medicine cardiac imaging. It is sold under the brand name Myoview (GE Healthcare). The radioisotope, technetium-99m, is chelated by two 1,2-bis[di-(2-ethoxyethyl)phosphino]ethane ligands which belong to the group of diphosphines and which are referred to as tetrofosmin.

Tc-99m tetrofosmin is rapidly taken up by myocardial tissue and reaches its maximum level in approximately 5 minutes. About 66% of the total injected dose is excreted within 48 hours after injection (40% urine, 26% feces). Tc-99m tetrofosmin is indicated for use in scintigraphic imaging of the myocardium under stress and rest conditions. It is used to determine areas of reversible ischemia and infarcted tissue in the heart. It is also indicated to detect changes in perfusion induced by pharmacologic stress (adenosine, lexiscan, dobutamine or persantine) in patients with coronary artery disease. Its third indication is to assess left ventricular function (ejection fraction) in patients thought to have heart disease. No contraindications are known for use of Tc-99m tetrofosmin, but care should be taken to constantly monitor the cardiac function in patients with known or suspected coronary artery disease. Patients should be encouraged to void their bladders as soon as the images are gathered, and as often as possible after the tests to decrease their radiation doses, since the majority of elimination is renal. The recommended dose of Tc-99m tetrofosmin is between 5 and 33 millicuries (185-1221 megabecquerels). For a two-dose stress/rest dosing, the typical dose is normally a 10 mCi dose, followed one to four hours later by a dose of 30 mCi. Imaging normally begins 15 minutes following injection.

Questions and answers on "Myoview"

i had a bad allergic reaction to myoview..what is in it?shell fish?

doctor1 MD

Hello,
Thanks for the query.
Injection MYOVIEW is used for imaging myocardium and assessment of left ventricular function for evaluation of a...

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I have received a nuclear medicine patient injection sheet showing results of tests done today. product:: shows myoview,Tc99m - injection:...

doctor1 MD

All nuclear medicine tests ideally require the documentation of radio-activity injected to the patient. Here, the time and dose(radioactivity...

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i had pnuemonia and developed in to bronchitis and then diferent doctors said i also had asthma, i was put on calcort a steroid and onglyza for my...

doctor1 MD

Hello.

I am sorry for your situation.
As you well prescribe you are under treatment for cardiac problems,bronchial asthma, diabetes and pulmonary...

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Recent questions on  Myoview

doctor1 MD

i had pnuemonia and developed in to bronchitis and then diferent doctors said i also had asthma, i was put on calcort a steroid and onglyza for my...

doctor1 MD

Frontal and Lateral Chest x-rays: Heart size and pulmonary vessels are normal. Lungs are clear. No pneumothorax or pleural effusion is evident....

doctor1 MD

I have received a nuclear medicine patient injection sheet showing results of tests done today. product:: shows myoview,Tc99m - injection:...

doctor1 MD

Dear Doctor,

I am 31 years old, male living in Mumbai. I have had a brief history of heart diagnostic starting a year ago. I had applied for a life...

doctor1 MD

I just recently had a thyroidectomy . I was started on 50MCG Synthroid , at 4weeks I felt horrible my TSH was 50.3. Synthroid was increased to...

doctor1 MD

i had a bad allergic reaction to myoview..what is in it?shell fish?

doctor1 MD

I had a stress test yesterday and was called and told that in the XXXXXXX part when they took the pictures it showed that some part of my heart...

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