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Nuclear MedicineClick here for further details.

Specialized medical services

HATAZAWA Jun Director of Nuclear Medicine

HATAZAWA Jun
Director of Nuclear Medicine

In Nuclear Medicine , we are in charge of diagnostic nuclear medicine and treatment using radiopharmaceuticals. Diagnostic nuclear medicine is a method of evaluating a patient’s condition by administering a radiopharmaceutical and externally measuring the in-vivo kinetics over time. Currently, we are using three PET-CT scanners, two SPECT-CT scanners and two SPECT scanners. Diagnostic nuclear medicine is used for a broad range of disorders, including the heart, brain, malignant tumors, respiratory organs, digestive organs, kidneys and urinary tract, endocrine disorders, and bone joints. In particular, it can make the diagnosis of conditions or functions which cannot be detected by conventional morphological imaging modalities. In recent years, the range of diseases for nuclear medicine therapy is expanding. Currently, we can provide Sr-89 pain relief therapy for bone metastasis, 90Y-labeled antibody therapy for CD20-positive recurrent low-grade B cell non-Hodgkin lymphoma, and radium chloride (Ra-223) treatment for castration-resistant prostate cancer with bone metastasis.

Features

Osaka University Hospital has a compact cyclotron for medical use, which synthesizes radiopharmaceuticals for PET examinations. Cancer consumes abundant glucose to proliferate. For this reason, F-18 fluoro-deoxy-glucose (FDG), a radioactive glucose analogue, accumulates very well in malignant tumors. These sites of abnormal accumulation can be imaged with PET, enabling early diagnosis of cancer, evaluation of therapeutic effect, and detect the recurrence. Our department currently conducts over 2,200 FDG-PET examinations annually for all malignant tumors other than early stomach cancer. We also perform quantitative assessment of cerebral blood flow, cerebral oxygen consumption and cerebral oxygen extraction fraction using O-15 gas PET, and quantitative myocardial blood flow measurement using ammonia PET as examinations under health insurance. We are also working to develop new radiopharmaceuticals. Therapeutic agents (central nervous system agonists, anticancer drugs, antiarrhythmic drugs) can be labeled, and the distribution of the drugs can be evaluated in individual patients, contributing to diagnosis and therapeutic prognosis.

Considerations in referring your patients to Nuclear Medicine

We receive outpatients who are referred for PET examination every Monday morning. Patient will need to have a reservation, and to bring the letter of referral with previous images. We will confirm the need for an examination and schedule one if necessary. We will also explain the details of the examination, the costs, and any necessary preparations. For nuclear medicine treatment outpatients (in the Oncology Center), a reservation is available through the referring doctor of the main department. Please consult the main department of each disease.

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Guide for Visitors
Outpatient consultation days
Monday to Friday
Non-consultation days
Saturdays, Sundays, Holidays
New Year’s Holidays:
Dec. 29 to Jan. 3
Consultation times
First visit: 8:30 am to 11:00 am

First-time visitors to Osaka University Hospital must have a referral from a physician.

Revisit: 8:30 am to 11:30 am
Revisit with appointment: 8:30 am to 3:00 pm

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We cannot answer questions about diseases or treatments by telephone or mail. Please ask in consultation at the hospital.