Nuclear medicine is a branch of medical science that uses safe doses of radioactive substances to support the diagnosis and treatment of various diseases. Nuclear medicine examinations allow doctors to assess the function of organs and body tissues more accurately, not only their structure. This makes nuclear medicine highly beneficial in managing conditions such as cancer, heart disease, and disorders of the bones and other organs.
To provide a more comprehensive understanding, the nuclear medicine specialist at Mandaya Royal Hospital Puri, dr. Alvita Dewi S, SpKN-TM(K)Onk., M.Kes., FANMB, invites patients and the public to learn more about the facilities and advantages of nuclear medicine services available at Mandaya Royal Hospital Puri.
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Exploring the Facilities and Advantages of Nuclear Medicine at Mandaya Royal Hospital Puri
Nuclear medicine at Mandaya Royal Hospital Puri is an innovative medical service that plays an important role in the diagnosis and treatment of various diseases, particularly cancer. This approach evaluates not only the shape of organs, but also cellular function and activity within the body, helping doctors determine diagnoses and therapies with greater precision.
1. Digital PET CT Scan for Cancer Detection and Monitoring

One of the flagship nuclear medicine facilities at Mandaya is the Digital PET CT Scan. This examination can be used across multiple stages of disease management, from early cancer detection and staging to monitoring treatment response, post-therapy evaluation, and recurrence detection.
Digital PET CT Scan technology at Mandaya Royal Hospital Puri is capable of detecting very small cancer lesions, even before symptoms appear. In addition, this examination can assess cancer activity levels, providing crucial information for oncologists in evaluating the effectiveness of chemotherapy or other cancer therapies.
2. SPECT/CT Camera for Functional and Anatomical Imaging
Mandaya Royal Hospital Puri is also equipped with a SPECT/CT camera, an imaging technology that combines functional organ information with anatomical images. This facility enables the detection of various abnormalities, including conditions affecting the lungs, heart, brain, bones, and other organs.
With SPECT/CT, doctors can perform a wide range of examinations, such as bone scans to detect early cancer spread to the bones, whole-body scans for post-thyroid cancer surgery evaluation, sentinel node examinations, and other imaging studies tailored to the type of cancer being treated.
3. Theranostic-Based Nuclear Medicine Therapy
Another key advantage of nuclear medicine services at Mandaya is the application of the theranostic concept, which combines precise diagnosis with targeted therapy. This approach enables more effective treatment with minimal side effects, particularly for cancer patients.
Available therapies include radioactive iodine ablation for thyroid cancer, Lutetium-177 PSMA therapy for prostate cancer, and MIBG therapy for neuroendocrine tumors. The type of therapy and radiopharmaceutical used is determined individually based on comprehensive medical evaluation.
4. Minimally Invasive and Safe Procedures
Nuclear medicine therapies are administered through relatively simple and minimally invasive methods, such as intravenous injections or oral tablets. The radiopharmaceuticals used are delivered in controlled doses with relatively low radiation exposure, ensuring patient safety while minimizing side effects.
Throughout the therapy process, patients are closely monitored by experienced nuclear medicine specialists and medical teams, both in outpatient and inpatient settings.
5. Comfortable Uptake Rooms, Including VIP Facilities

Mandaya Royal Hospital Puri provides comfortable and calming uptake rooms for patients after radiopharmaceutical administration and before scanning. In addition to standard uptake rooms, VIP uptake rooms with larger and more comfortable facilities are also available to enhance patient comfort during the waiting period.
6. Radiation Isolation Rooms with Five-Star Hotel-Level Comfort
For patients undergoing certain nuclear medicine therapies, Mandaya offers radiation isolation rooms designed with facilities comparable to a five-star hotel. The care environment is created to ensure patients feel safe, comfortable, and at ease during the isolation period.
Another advantage is the availability of special isolation rooms for pediatric and elderly patients, where family members can still provide support from a separate room connected by a viewing window. This facility offers emotional support without compromising safety standards.
Profile, Expertise, and Practice Schedule of dr. Alvita at Mandaya Royal Hospital Puri

dr. Alvita Dewi Siswoyo, Sp.KNTM, Subsp. Onk., M.Kes., FANMB is a nuclear medicine specialist with subspecialty expertise in oncology. She completed her nuclear medicine specialist training at Universitas Padjadjaran, Bandung, providing a strong academic foundation in managing various diagnostic and therapeutic nuclear medicine cases.
To stay up to date with the latest scientific and technological developments, dr. Alvita actively participates in international-scale training programs. These include Hybrid Imaging in Oncology, the International Atomic Energy Agency (IAEA) Regional Training Course in Mumbai, workshops on radioisotopes, radiopharmaceuticals, cyclotrons, and nuclear medicine organized by the Indonesian Society of Nuclear Medicine, as well as IAEA programs conducted in countries such as India, Indonesia, and Seoul.
dr. Alvita Dewi Siswoyo, Sp.KNTM, Subsp. Onk., M.Kes., FANMB practices at Mandaya Royal Hospital Puri on the following schedule:
- Monday: 17.00 – 19.00
- Wednesday: 17.00 – 19.00
To make your visit more convenient, you can use the WhatsApp Chat feature, Book Appointment service, or the Care Dokter application—available for download on Google Play and the App Store—to schedule visits, check queue numbers, and access other complete information.

