Toll free NO: 8001277000

Nuclear Medicine

/Nuclear Medicine

Captopril MAG3/DTPA Renal Scintigraphy

By |2018-05-20T11:25:40+03:00July 27th, 2014|Urinary system|

Captopril MAG3/DTPA Renal Scintigraphy can determine overall renal (kidney) function and also relative left and right kidney function. The test is performed using the radiotracer called Tc99m-DTPA (Diethylene Triamine Pentacaetic Acid) or Tc99m-MAG3 (Mercaptoacetyltriglycine). The test is often used in combination with a diuretic drug such as frusemide to determine if a [...]

I123 WBS (Thyroxine (T4) Withdrawal Method)

By |2018-05-16T10:50:22+03:00July 25th, 2014|Endocrine system, Nuclear Medicine|

Before I123 WBS (Thyroxine (T4) Withdrawal Method) measurement of serum TSH-stimulated thyroglobulin (Tg) is a sensitive method for detecting residual/recurrent well-differentiated thyroid carcinoma (WDTC) in patients previously treated by surgery and radioactive iodine (RAI) ablation therapy. WDTC patients who have an undetectable serum Tg on thyroid hormone therapy (THT) in the absence of [...]

I123 WBS (Thyrotropin-Alfa Stimulated Method)

By |2018-05-16T10:35:10+03:00June 15th, 2014|Endocrine system, Nuclear Medicine|

A Thyrotropin-Alfa stimulated total body scan with Iodine-123 is a nuclear medicine procedure used in patients with a history of thyroid cancer. Usually, patients have had their thyroid gland removed and are undergoing a routine check up to make sure the cancer has not returned. Thyrogen is like the body's naturally produced [...]

Diamox (Acetazolamide) Brain Stress Perfusion

By |2018-05-17T12:07:17+03:00May 26th, 2014|Central nervous system, Nuclear Medicine|

Diamox (Acetazolamide) Brain Stress Perfusion is a functional nuclear imaging technique performed to evaluate regional cerebral perfusion. Brain SPECT can be complemented with pharmaceutical agents that enhance regional cerebral blood flow, such as acetazolamide (carbonic anhydrase). Acetazolamide increases local pCO2 and causes arteriolar dilation, allowing for assessment of cerebrovascular reserve in transient ischemic [...]

Brain Tumour and Tumour Viability SPECT

By |2018-05-17T12:01:06+03:00May 26th, 2014|Central nervous system, Nuclear Medicine|

Tc99m-tetrofosmin/MIBI and thallium-201 perfusion agents concentrate mainly in viable tumour cells, less so in inflammatory cells and almost negligibly in necrotic tissue. Although early images may demonstrate uptake in infection because of passive diffusion, this usually clears on delayed 2-4 hr images. Thallium, Tetrofosmin and MIBI do not cross the BBB unless the [...]

Brain Perfusion SPECT

By |2018-05-17T11:54:06+03:00May 26th, 2014|Central nervous system, Nuclear Medicine|

Brain perfusion single-photon emission computed tomography (SPECT) imaging is a functional nuclear imaging technique performed to evaluate regional cerebral perfusion.Because cerebral blood flow is closely linked to neuronal activity, the activity distribution is presumed to reflect neuronal activity levels in different areas of the brain. A lipophilic, PH-neutral radiopharmaceutical (most commonly99m Tc-hexamethylpropyleneamine oxime [...]

Seizure (ICTAL, Post ICTAL and INTERICTAL) Brain Perfusion SPECT

By |2018-05-20T10:43:37+03:00May 26th, 2014|Central nervous system, Nuclear Medicine|

Seizure (ICTAL, Post ICTAL and INTERICTAL) Brain Perfusion SPECT is used primarily if an MRI and EEG didn't pinpoint the location of where the seizures are originating. There are two ways of doing the SPECT, during a seizure (ictal) and between seizures (interictal). The ICTAL SPECT provides the opportunity to image cerebral [...]

Brain Death Scintigraphy

By |2018-05-17T11:46:47+03:00May 26th, 2014|Central nervous system, Nuclear Medicine|

This study is performed to confirm a clinical diagnosis of brain death. Brain-specific or lipophilic tracers which cross the blood-brain barrier (eg, Tc-99m HMPAO or Tc-99m ECD) are preferred over non-specific or lipophobic tracers (eg,Tc-99m DTPA), which are considered angiographic radionuclides.source: newcastlenuclearmedicine.com.au English: Brain Death Study Instructions Arabic: Brain [...]