Two Different Types of Bone Scans

By Jan Manarite, VP of Advocacy & Education

Many prostate cancer patients receive a CT Scan and a Bone Scan as part of their initial staging and as part of their continued cancer evaluations.  What they may not realize is that there are now 2 different types of Bone Scans a patient can receive.  One is known to be more accurate, but is also less available, so you may have to ask for it and/or travel out of town.  But at the very least, I’d like you to know your options.

No medical imaging is perfect.  None have a 100% chance of finding cancer on a rising PSA.  Each type of imaging has its own strengths and weaknesses depending on (1) what the imaging is looking for and (2) what area of the body it is imaging.  So a good question to research and ask your physicians is – “How accurate is this scan in finding what we are looking for?”  This honest information can often help you in your treatment decision-making.

The most common Bone Scan, which has been around for decades is the T99 or Technetium 99 Bone Scan.  It has pretty good accuracy overall.  But the F18 (Sodium Fluoride) PET Bone Scan is known to have higher accuracy (REF).  It also takes longer to administer than the T99, is more expensive for insurance and gives the patient a little more radiation exposure.  But if you are in a place in your cancer journey where finding the cancer is important to you, the F18 PET Bone Scan may be something you want to research and discuss with your physician(s).    

Dr Snuffy Myers also talks about the difference in the accuracy between these 2 Bone Scans in his video – Confusing Prostate Cancer Terms– (5 minutes into the video). 

To find an F18 PET/Bone Scan in your area, you will have to do a little research.  You can search with your zip code here.  It is likely that you will still need to call the facilities you find, as things often change.  You can also call the National Oncologic PET Registry (NOPR) at 800-227-5463, ext. 4859 and ask for Joy Brown, administrator.

Medicare usually pays for the F18 PET Scan.  Private insurance pays sometimes and sometimes it doesn’t, so you will need to ask your insurance company.

Note – A Bone Scan looks for cancer in the bone or metastases.  This is not to be confused with a DEXA Scan or QCT, which looks for bone loss or osteoporosis.  This article discusses Bone Scans. 

 




What’s the difference between a Radiologist and a Nuclear Medicine Physician?

In fact – What the heck in Nuclear Medicine?…
By Jan Manarite, VP of Advocacy & Education

As I stated in my previous blog, a Radiologist is a physician you probably never meet, yet still impacts the understanding and treatment course of your cancer.  He reads and interprets your imaging or your radiology exams, such as CT, MRI, and X-ray. 

A Nuclear Medicine physician also reads and interprets imaging, but some types of imaging are not called radiology – they are called nuclear medicine, or nuclear imaging.  In prostate cancer the most common nuclear imaging exams are Bone Scans, and all types of PET Scans.  These are considered nuclear medicine because the patient receives an injection that is radioactive, called a radio-pharmaceutical as part of the imaging.  (An MRI or CT Scan can sometimes require an injection, but it is not a radiopharmaceutical, so they are not nuclear medicine.)

Another way to state the difference between imaging with radiology vs nuclear medicine, is that radiology is designed to see anatomy (shapes & sizes), while nuclear medicine is designed to see physiology (cells, molecules, chemical interactions, etc.).  If you’ve ever had a PET scan (nuclear imaging) for your prostate cancer, you may have had it “fused” with a CT scan (radiology).  That’s because the PET is better at visualizing cancer cells, but the CT scan is better at visualizing anatomy such as organs, bones, etc.  Since no medical imaging is 100% perfect, using 2 different techniques together often improves the accuracy of the exam.   

Another unusual thing about Nuclear Medicine, is that it includes both imaging, and treatment – because a radiopharmaceutical can be used for either.  And the radiopharmaceutical (injection) is what makes something “nuclear medicine”.  So nuclear medicine physicians not only deal with imaging, but they also administer a few treatments.  In prostate cancer, this is mainly one treatment right now, which is Xofigo (radium 223).  Xofigo was FDA approved in 2013 for men on hormone therapy, with rising PSA and bone metastases (see full Xofigo information here). 

So if you are scheduled to start Xofigo, you may have a clinic visit scheduled to see a nuclear medicine physician, who you may have never met before in your cancer care.  The only other type of doctor who administers Xofigo is a Radiation Oncologist – See previous blog post.

In the world of prostate cancer there are many twists and turns on the journey.  The medical system is often complicated, and sometimes overwhelming.  Understanding the medical system can help you navigate your journey.  Knowing a little about the different physicians might be of help.  So if you hear the word nuclear medicine, know that it includes both imaging and treatment in prostate cancer.  And know that it’s slightly different than radiology when it comes to your imaging.  Use this information to formulate better questions for your nurses, or medical oncologist.  Better questions always bring better answers.  Stay empowered.

 




What’s the Difference Between a Radiologist and a Radiation Oncologist?

By Jan Manarite, VP of Advocacy & Education.

A Radiologist is a physician you probably never meet, yet still impacts the understanding and treatment course of your cancer.  He reads and interprets your imaging or your radiology exams.  In prostate cancer, radiology exams include CT Scan, MRI, and X-ray (most commonly).  Ultrasound would also be considered radiology, but in the case of prostate cancer, most urologists do their own ultrasounds and don’t use radiologists.  There are other imaging techniques which are called “nuclear medicine” because they require an injection that is radioactive or a “radio-pharmaceutical.”  Nuclear medicine imaging in prostate cancer includes Bone Scans (both the T99 and the F18) and all PET Scans (C11 Choline, C11 Acetate and F18 or Sodium Fluoride).  Read more in Monday’s  blog for the difference between a radiologist and a nuclear medicine physician.

Now, to complicate issues just a little more….there are Radiologists who DO see patients, therefore they treat prostate cancer, but they are the exception to the rule.  Sometimes they are referred to as interventional radiologists.  In our world of prostate cancer, some familiar names would include Dr. Duke Bahn in CA who is known for cryotherapy (cryo) and focal cryo, Dr. Fred Lee in MI (retired) who did the same, and Dr. Gary Onik in FL who also does cryo and focal cryo.  There are also radiologists like Dr. Aytekin Oto in Chicago who are doing work in focal laser treatment for prostate cancer. (Note – focal treatments treat part of the prostate as opposed to all of the prostate.)

Now – on to the Radiation Oncologist.  This is the physician who administers your radiation treatments for cancer, so this is much different than a radiologist.  Since there are so many types of radiation treatments in prostate cancer, I will not attempt to name them all.  But at the very least, think of daily radiation treatments to the prostate and short term radiation to metastatic disease as common treatments given by radiation oncologists.  There is also radioactive seed implantation to the prostate (brachytherapy) which involves both the radiation oncologist and the surgeon (urologist).   

One last type of radiation that a radiation oncologist may administer is an injectable radiation for bone metastases called Xofigo (radium 223).  This is for men who are metastatic and on hormone therapy.  As you may know, this is called mCRPC or metastatic castrate-resistant prostate cancer.  The other type of physician who might also administer Xofigo is a Nuclear Medicine Physician. 

Simply understanding the differences between physicians can help you in your research and help you decide who to make an appointment with.  This is all part of patient empowerment – we hope this explanation is helpful to you.

Watch for the next blog – What is the difference between a Radiologist and a Nuclear Medicine Physician…