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Nuclear Medicine

GASTROINTESTINAL SYSTEM

GIT bleed
Meckels Diverticulum
Gastro-Oesophageal transit and reflux in children
(Milk scan)
Gastric emptying and transit
Small and large bowel transit

Radioiodine has 3 main indications in the postoperative management of patients with thyroid cancer: Ablation of residual thyroid tissue with 131-I, Imaging for possible recurrent disease with 123-I or 131-I, And treatment of residual or recurrent thyroid cancer with 131-I. Chylothorax

TUMOUR DIAGNOSTIC IMAGING

Tumour of Primary Unknown Disease burden (Extent of tumour) with whole body imaging. Residual tumour activity post therapy. Recurrent tumour activity in the midst of postsurgical/therapeutic changes. Determine sites of biopsy (most metabolic active site).

CARDIOVASCULAR SCINTIGRAPHY

MYOCARDIAL IMAGING Diagnosis of coronary artery disease: Presence, location (coronary territory), and severity. Assessment of the impact of coronary stenosis on regional perfusion. Distinguish viable hibernating myocardium from scar. Risk assessment and stratification. Post-myocardial infarction. Pre-operative evaluation for major surgery in patients at risk for coronary events. Monitor treatment effects. Monitor after coronary revascularization. Medical therapy for congestive heart failure or angina. Lifestyle modification.

LIVER AND SPLEEN

HEPATOBILIARY SCINTIGRAM (HIDA SCAN) - Suspected acalculous cholecystitis - Suspected chronic biliary tract disorders - Atresia of the biliary tree (Neonatal jaundice) - Enterogastric reflux

LIVER - Hepatic Hemangioma(s) - Cirrhosis

SPLEEN - Assessment for splenunculus or residual splenic tissue post-splenectomy

RENAL SCINTIGRAPHY

Tc 99m MAG3 / Tc 99m DTPA / GFR
- Differential Renal function (contribution of each kidney to global renal function)
- Evaluation of obstructive nephropathy and obstructive uropathy associated with hydronephrosis, renal stones, malignancy, etc.
- Evaluation of renal transplantation
- Investigation of unknown origin of lumbar pain
- Investigation of acute or chronic renal failure
- Renal trauma

Tc 99m DMSA RENOGRAM
- Assessment of parenchymal involvement in acute pyelonephritis
- Assessment of renal infarction and scarring post-infective or post-vasculitis
- Assessment of differential renal function and contribution of single kidney function toward global renal function
- Detection of congenital abnormalities: abnormal duplex kidneys, small kidneys, dysplastic kidneys, horseshoe kidney, and pelvic kidney
- Distinguish pseudotumors/benign space-occupying lesions (e.g., prominent column of Bertini) from tumors

CAPTOPRIL RENOGRAM
- Determination of the presence of renovascular disorders as a cause of hypertension
- Malignant hypertension
- Hypertension difficult to control or resistant to medical therapy
- Hypertension occurring at extremes of age
- Deterioration of renal function during therapy with ACE inhibitors
- Deteriorating renal function of no obvious cause

RADIONUCLIDE CYSTOGRAM
- Direct/indirect assessment of active reflux of urine

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