Speciality Department

Nuclear Medicine

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Nuclear Medicine is a rapidly developing branch of medicine which uses radioisotopes for diagnostic imaging and therapy. All nuclear medicine investigations and therapeutic procedures with reference to subspecialities of medicine and surgery are available at the Department of Nuclear Medicine at Amriat Hospital.

PET-CT Facility

The Department of Nuclear Medicine is equipped with the state-of-the-art 8 slice PET-CT scanner (Positron Emission Tomography - Computed Tomography), the first of its kind in the state of Kerala. It provides superior diagnostic information for patients with cancer, ischemic heart disease and certain neurologic conditions. In the three decades since its development, PET has been demonstrated to be a clinically proven and safe method for imaging a variety of disorders. The advantages of PET have been augmented by the addition of CT in the same gantry providing combined imaging in one sitting. PET-CT is a whole-body imaging procedure, is cost-effective and is used in the staging, and follow-up for most cancers, including lymphomas, lung, colorectal, gynaecological, head, neck and breast cancers. It is also used to evaluate treatment response after chemotherapy and radiotherapy. Mid cycle PET-CT is useful to ascertain if the patient is responding to chemotherapy, so that regimes can be modified. It is also used in Radiotherapy planning. PET is able to discover these changes in their earliest stages, often before any symptoms appear. With this information on early developing cancers, effective treatment plans can be initiated sooner. PET can sometimes eliminate the need for other invasive procedures and by correctly staging cancers, may prevent unnecessary surgical procedures.

Gamma Camera Facility

Nuclear Medicine imaging or Scintigraphy utilizes a dual head gamma camera to record the physiological activity of selected organs or body systems. This imaging is fundamentally different from magnetic resonance imaging (MRI) and computed tomography (CT), for these methods only convey anatomic information. In most diseases, physiological changes precede anatomic changes, so scintigraphic evidence of a disease process can be diagnosed at an earlier stage. On the other hand, the MRI and CT are useful for clinical diagnosis after the disease process causes significant anatomic alterations. The gamma camera images the gamma rays emitting from the patient who has been injected with minute quantities of a radioactive tracer bonded to various test specific pharmaceuticals.

Gamma Camera Procedures Performed

 THYROID SCAN  To assess thyrotoxicosis, Graves disease, toxic MNG, thyroiditis, thyroid nodule evaluation, lingual thyroid etc
 PARATHYROID SCAN To assess parathyroid adenoma, hyperplasia, ectopic parathyroid adenomas
MYOCARDIAL PERFUSION/ THALLIUM SCAN To evaluate IHD, physiological significance of known coronary stenosis, Coronary artery disease, False positive TMT, Baseline ECG changes like LBBB, Risk stratification of CAD, Presurgical cardiac evaluation, to assess myocardial viability before CABG prior to surgery for congenital heart disease, follow-up of Kawasaki disease
MUGA SCAN To evaluate accurate LVEF, regional wall motion abnormalities in CAD, patients with obesity, COPD, prior to adriamycin and other cardiotoxic drug therapy
 RENOGRAM To assess GFR of individual kidneys esp. in donors, neonatal hydronephrosis, PUJ obstructions, obstructed megaureter. Relative function evaluation in patients with renal malignancy prior to nephrectomy, ectopic kidneys, post renal transplant evaluations
DMSA SCAN To assess UTI (Renal scars), ectopic kidneys, accurate function assessment of individual kidneys
DIRECT / INDIRECT RADIONUCLIDE MCU SCAN To assess VU reflux, UTI, hydroureteronephrosis
  WHOLE BODY BONE SCAN To evaluate skeletal mets, bone malignancy, low backache, tuberculosis of bone, avascular necrosis, metabolic bone disease, stress fracture, osteomyelitis versus cellulitis.
GALLIUM SCAN Assessment of prosthetic infections, evaluation of lymphoma (Hodgkin's & non Hodgkin's), fever of unknown origin
LUNG PERFUSION & VENTILATION Pulmonary embolism, lung vascularity assessment in children with congenital heart disease, predict FEV1 in patients planned for pneumonectomy/lobectomy
LIVER-SPLEEN SCAN Alcoholic hepatitis, cirrhosis, portal hypertension, hemangioma, jaundice, Budd chiari syndrome.
HEPATOBILIARY SCAN Differentiate neonatal hepatitis vs biliary atresia, postop bile leak, choledochol cyst, post liver transplant cases, gall bladder dyskinesia, acute/chronic cholecystitis.
MECKEL'S SCAN Evaluation of  meckels diverticulum (Ectopic gastric mucosa), malena, GI bleed.
GASTRO INTESTINAL BLEEDING To evaluate occult GI bleed and localize the site of bleed
GASTRIC EMPTYING Diabetic gastroparesis.
GASTRO ESOPHAGEAL REFLUX ( Milk scan) Recurrent respiratory infections, heart burns
To evaluate tear duct patency

Therapeutic Nuclear Medicine Procedure

LOW DOSE I-131 THERAPY Treatment of thyrotoxicosis – Graves disease, Toxic MNG, Autonomous toxic nodule
HIGH DOSE I-131 THERAPY Treatment of differentiated thyroid carcinoma and metastases
STRONTIUM THERAPY Palliative bone pain therapy for cancer patients
MIBG THERAPY Malignant pheochromocytoma, neuroblastoma
YTTRIUM MICROSPHERES Treatment of hepatocellular cancer and metastases


Phone: 0484 - 2852001
Email: nuclearmed@aims.amrita.edu