Treatment FAQ

why no scans after cancer treatment

by Meggie Walter Published 2 years ago Updated 2 years ago
image

Because of this concern, which is greatest shortly after local treatment, people have generally recommended that PET scans not be pursued until at least 3-6 months after treatment because of the high risk for false positive results (scan shows abnormalities that aren’t really cancer), and also that any areas that appear suspicious on a PET should be confirmed as cancer with CT imaging and a biopsy before pursuing any interventions against presumed cancer.

One concern with post-treatment imaging among doctors and patients is radiation exposure, a cancer risk factor. Doses for imaging tests generally vary from quite low for mammograms and chest X-rays to far higher for PET/CT scans. (MRI and ultrasound scans don't use radiation.)Mar 21, 2019

Full Answer

Can a CT scan fail to detect cancer?

Problems with CT Scans CT Scans Fail to Detect Cancer Like ultrasounds, a CT scan is unable to differentiate cancerous tissue from non-cancerous tissue: Therefore, CT scans can lead to a false negative

Why is my scan taking so long to come back?

This could be because of the high number of people needing certain scans. Some types of specialised scans are only available in larger hospitals. So you might need to go to another hospital for your scan, which can increase the length of time you wait. A specialist doctor needs to examine your scan and write a report.

Should we avoid PET scans for cancer screening?

In 2013, the American Society of Clinical Oncology (ASCO) recommended avoiding PET scans in routine monitoring for cancer recurrence “unless there is high-level evidence that such imaging will change the outcome.”

Does waiting a few weeks for a scan affect the treatment?

So waiting a few weeks for a scan or treatment does not usually affect how well the treatment works. Within the UK, there are targets for maximum waiting times to start treatment. The different UK nations have their targets around:

image

How often do you get scans after cancer?

In general, people return to the doctor for follow-up appointments every 3 to 4 months during the first 2 to 3 years after treatment, and once or twice a year after that. At these visits, you may have a physical exam along with blood tests and other necessary tests and procedures.

How soon after chemo can you have a CT scan?

Immediate (within 10 days of the last chemotherapy administration), early (from 11 to 20 days) and delayed (from 21 to 30 days) contrast-enhanced CT.

Do you get a scan after chemo?

After your chemotherapy has finished you will have a scan to find out how your cancer has responded to the treatment. Your cancer doctor will then discuss whether or not you would benefit from further treatment. You will then have regular check-ups with your oncology team. This may include blood tests, scans or x-rays.

Do cancer patients get CT scans?

A CT scan (also known as a computed tomography scan, CAT scan, and spiral or helical CT) can help doctors find cancer and show things like a tumor's shape and size. CT scans are most often an outpatient procedure.

How often do you get scans after chemo?

At intervals of three months, six months or longer, patients return for follow-up visits, often involving imaging scans, to find out if the cancer is back. Even if a scan shows no signs of cancer, patients know the clock will begin ticking toward the next round of tests.

What are the signs that chemo is not working?

Here are some signs that chemotherapy may not be working as well as expected: tumors aren't shrinking. new tumors keep forming. cancer is spreading to new areas.

How often should you see your oncologist after treatment?

In general, people return to the doctor for follow-up appointments every 3 to 4 months during the first 2 to 3 years after treatment, and once or twice a year after that. At these visits, you may have a physical exam along with blood tests and other necessary tests and procedures.

When will oncologist stop treatment?

If you've undergone three or more chemotherapy treatments for your cancer and the tumors continue to grow or spread, it may be time for you to consider stopping chemotherapy.

What tests are done after chemotherapy?

After treatments like chemotherapy, radiation, immunotherapy, and targeted therapy, your doctor will examine you for any new growths. You'll also get blood tests, X-rays, and other imaging tests. These tests will measure your tumor and see if your treatment has slowed or stopped your cancer.

Does cancer come back worse?

Recurrence is cancer that goes away and comes back, while progression is cancer that worsens or spreads. Cancer that seems to return quickly may have become resistant to treatment, so it's actually a progression.

How soon after radiation can you have a CT scan?

You will meet with your radiation oncologist about 3 to 6 weeks after you complete your radiation treatments. Your radiation oncologist may ask you to have another scan (CT, PET, or MRI) before the follow-up appointment. You will meet with your doctor 3 to 6 weeks after you complete your radiation treatment course.

At what point are you considered cancer free?

In a complete remission, all signs and symptoms of cancer have disappeared. If you remain in complete remission for 5 years or more, some doctors may say that you are cured. Still, some cancer cells can remain in your body for many years after treatment. These cells may cause the cancer to come back one day.

How to know if you have cancer?

Often, there are better ways to keep track of your condition: 1 Be aware of symptoms that could mean cancer has returned. 2 Get regular checkups that include a medical history and physical exam. 3 For some cancers, there are simple tests you should get, such as mammograms for women who have been treated for breast cancer. 4 Ask your doctor which test, if any, is right for your situation.

How much does a PET scan cost?

The tests are expensive. A PET-CT scan can cost $5,000 or more, according to one U.S. medical center. That does not include the cost of added tests and procedures due to false alarms. Some insurance plans do not pay for routine (surveillance) PET scans in a healthy patient who has completed cancer treatment.

What is a PET scan?

A PET or PET-CT scan may be helpful if your doctor suspects your cancer has returned, based on your symptoms, a physical exam, or other tests. A scan may also be recommended if you were treat­ed for advanced cancer and your doctor needs to find out if your most recent treatment was effective.

How to get rid of breast cancer?

Get regular checkups that include a medical history and physical exam. For some cancers, there are simple tests you should get, such as mammograms for women who have been treated for breast cancer. Ask your doctor which test, if any, is right for your situation.

What happens if you are scanned without a reason?

If you are scanned without a good reason, it can lead to anxiety, wrong diagnoses, false alarms, unneces­sary procedures, and more costs. Often, there are better ways to keep track of your condition: Be aware of symptoms that could mean cancer has returned.

Can a PET scan help with cancer?

PET and PET-CT scans usually don’t help people who have completed cancer treatments and don’t have symptoms. For most cancers, these tests don’t help you live longer or with a better quality of life.

Do you need a PET scan for cancer?

Your doctor will watch you closely for many years to check for a possible return of the cancer. To be extra sure, some doctors will order imaging tests, known as PET scans. They are often combined with CT scans. These scans take pictures of your body where cancer might be growing. But you may not need the tests.

What is the name of the scan that shows the inside of the body?

In addition to ultrasounds, another scan commonly used in standard cancer diagnosis is a CT scan. CT stands for Computed Tomography. It's an imaging tool that uses X-ray technology to produce scans of the inside of the body. A CT scan is also sometimes called a CAT scan (Computerized Axial Tomography).

How long did Janice have her PET scan?

Janice called us for a consultation and the first thing we did was set up a PET/CT scan for her so she could find out for certain if cancer was present in her body. 3 days later she had her PET/CT scan and 24 hours later that we had the results. We called Janice with the news. It wasn’t good news.

Is a CT scan more accurate than a PET scan?

A CT scan is also sometimes called a CAT scan (Computerized Axial Tomography). While CT scans do show a bit more detail than an ultrasound, they still cannot identify cancerous tissue – and this can easily lead to false negatives. PET/CT scans, on the other hand, provide you with far more accurate and detailed results.

Can a CT scan show a cancerous mass?

Or, to have only partial tumour removal during surgery) CT Scans are Inaccurate for Treatment Monitoring. After cancer treatment, a CT scan is unable to determine whether masses leftover are cancerous:

Can a CT scan detect cancer?

CT Scans Fail to Detect Cancer. Like ultrasounds, a CT scan is unable to differentiate cancerous tissue from non-cancerous tissue: Therefore, CT scans can lead to a false negative. This can negatively impact your ability to get any treatment at all. This can prolong the time it takes you to access treatment.

Can a CT scan identify a tumour?

A CT Scan cannot identify the most aggressive tumours: Therefore, doctors are unable to prioritize treatment effectively. They’re unable to differentiate between cancerous tissue and cysts (or fibroids) CT Scans Miss Tumours. A CT scan is unable to clearly identify the location of all tumours in your body:

Is a whole body CT scan good?

Did you know... Research shows that a whole-body CT scan may be ineffective for a healthy person. There are concerns about the ionizing radiation used in CT scans, which could lead to larger numbers of future cancers. 1, 2, 3.

Why do you need a pelvic exam after breast cancer surgery?

Pelvic exams: If you are taking either of the hormone drugs tamoxifen or toremifene and still have your uterus, you should have pelvic exams every year because these drugs can increase your risk of uterine cancer.

Why aren't breast cancer tests included in follow up?

Other tests: Other tests such as blood tests and imaging tests (like bone scans and chest x-rays) are not a standard part of follow-up because they haven’t been shown to help a woman who's been treated for breast cancer live longer.

How long does breast cancer treatment last?

Almost any cancer treatment can have side effects. Some might only last for a few days or weeks, but others might last a long time.

What hormones are used to test bone density?

Bone density tests: If you are taking a hormone drug called an aromatase inhibitor (anastrozole, letrozole, or exemestane) for early stage breast cancer, or if you go through menopause as a result of treatment, your doctor will want to monitor your bone health and may consider testing your bone density.

What happens if cancer comes back?

If cancer does return, your treatment options will depend on where it comes back, what treatments you've had before, and your current health and preferences. For more information on how recurrent cancer is treated, see Treatment of Recurrent Breast Cancer .

What is a survivorship plan?

This plan might include: A schedule for other tests you might need in the future, such as early detection (screening) tests for other types of cancer, or tests to look for long-term health effects from your cancer or its treatment.

How long after cancer treatment do side effects show?

Some side effects might not even show up until years after you have finished treatment. Visits with your doctor are a good time for you to ask questions and talk about any changes or problems you notice or concerns you have. However, if you have additional concerns about your cancer, you do not have to wait until your next scheduled visit.

Why do we need a PET scan?

PET Scans for Follow-up of Patients After Surgery or Chemo/Radiation. We know PET scans can provide additional metabolic information that can be more sensitive and specific for cancer than chest x-rays and even CT scans in the initial staging of lung cancer (see prior post on introduction to PET scans ). PET scans are now nearly universally ...

What is PET scan?

Unlike CT scans, which are great at discerning shape and size of internal parts of the body, PET scans are metabolic studies that hold the promise of distinguishing between residual viable cancer and non-viable scar tissue after surgery or radiation.

Can PET scans be sensitive?

My general philosophy is that PET scans can be so sensitive but non-specific, especially after chemoradiation with or without surgery for stage III NSCLC, that changes in the absence of CT findings can too often be an anxiety-laden wild goose chase.

Can PET scans improve cancer?

The concept that PET scans will improve our ability to detect curable recurrences or new cancers hasn’t yet been supported by any evidence of better survival or quality of life in patients. In the face of such a confusing situation, there’s a lot of variability in what oncologists actually do.

Is a PET scan considered a stage IV?

PET scans are now nearly universally employed in the initial workup, at least of patients who have NSCLC and aren’t already known to have stage IV disease.

How long do you have to wait to get a new cancer diagnosis?

In some situations, your doctor may diagnose a new primary cancer instead of a recurrence. If so, you should wait no more than 2 months (62 days) to start treatment. This time starts on the date that the hospital has received an urgent referral for suspected cancer.

How long does it take to get a referral for cancer?

no more than 2 months (62 days) wait between the date the hospital receives an urgent referral for suspected cancer and the start of treatment. no more than 31 days wait between the meeting at which you and your doctor agree the treatment plan and the start of treatment. In May 2019 Wales introduced the Single Cancer Pathway.

How long does it take for a cancer scan to come out?

They send the report to your cancer specialist who will give you the results. It usually takes a couple of weeks for the results to come through.

How long does it take to see a specialist for breast cancer?

In England, an urgent referral means that you should see a specialist within 2 weeks. In Northern Ireland, the 2 week wait only applies for suspected breast cancer. Scotland, Wales and (in general) Northern Ireland don't have the 2 week time frame to see a specialist.

How long should you wait to find out if you have cancer?

England. NHS England is working towards a new target called the Faster Diagnosis Standard (FDS). The target is that you should not wait more than 28 days from referral to finding out whether you have cancer. This is part of an initiative by NHS England.

Why do you need urgent referral?

Urgent referral for suspected cancer. Your GP might arrange for you to see a hospital doctor (specialist) urgently. This might be because you have symptoms that could be due to cancer. An urgent referral can be worrying. But remember that 9 in every 10 people (90%) referred this way will not have a diagnosis of cancer.

How long does it take to get cancer treatment in Wales?

In May 2019 Wales introduced the Single Cancer Pathway. This combines all urgent and non urgent referrals into one target time of 62 days or less . This means, that when cancer is first suspected, everyone should have a confirmed diagnosis and start treatment within 62 days. The time starts from one of the following:

How much does a PET scan cost?

A PET scan can cost $7,000 or more, according to choosingwisely.org. The specific amounts patients pay vary according to their insurance coverage. Medicare limits the number of PET scans following initial cancer treatment to three per patient. (More could be covered if deemed necessary by the doctor.)

What is the most common test for cancer?

One of the most commonly used tests in cancer care is the positron emission tomography (PET) scan, which utilizes a radioactive substance called a tracer to find cancer cells. Doctors often order PET scans to stage a cancer or to assess whether treatment is working.

Do hospitals use PET scans?

The study also uncovered wide variations among hospitals in their use of PET scans to monitor for recurrence. At some hospitals, patients almost never had a PET scan to monitor for recurrence, while at other hospitals, nearly every lung or esophageal cancer survivor did. The study found that patients fared equally well at both types of hospitals.

Can a PET scan be used as a first line test?

But cancer care guidelines generally do not recommend a PET scan be used as a first-line test for determining if the cancer has returned. Routine PET scanning for follow-up monitoring does not contribute to improved outcomes, according to studies. Photo © iStock / selimaksan.

Does cancer testing always come with health benefits?

Many people who have completed cancer treatment fear the cancer will return. This can lead patients and doctors to pursue frequent testing, in hopes of catching a recurrence sooner. But there’s a growing realization that testing doesn’t always come with health benefits.

Is the FDA moving away from the maximum dose?

Moving Away From the Maximum Tolerated Dose. The FDA recently expressed a new commitment to testing cancer drugs at lower doses, rather than defaulting to the highest dose most people can tolerate. by Marcus A. Banks. The Individual Sphere of Influence.

How to keep track of cancer treatment?

Keeping personal health records. You and your doctor should work together to develop a personalized follow-up care plan. Be sure to discuss any concerns you have about your future physical or emotional health. ASCO offers forms to help keep track of the cancer treatment you received and develop a survivorship care plan when treatment is completed. ...

What to do if a doctor is not involved in cancer care?

If a doctor who was not directly involved in your cancer care will lead your follow-up care, be sure to share your cancer treatment summary and survivorship care plan forms with them and with all future health care providers . Details about your cancer treatment are very valuable to the health care professionals who will care for you ...

What is ASCO for cancer?

ASCO offers forms to help keep track of the cancer treatment you received and develop a survivorship care plan when treatment is completed. This is also a good time to talk with your doctor about who will lead your follow-up care. Some survivors continue to see their oncologist, while others transition back to the care of their family doctor ...

Why do we need to follow up on cancer?

One goal of follow-up care is to check for a recurrence, which means that the cancer has come back. Cancer recurs because small areas of cancer cells may remain undetected in the body . Over time, these cells may increase in number until they show up on test results or cause signs or symptoms. During follow-up care, a doctor familiar with your medical history can give you personalized information about your risk of recurrence. Some people may have blood tests or imaging tests done as part of regular follow-up care, but testing recommendations depend on several factors, including the type and stage of cancer first diagnosed and the types of treatment given.

How often should I get a chest CT scan?

The preferred test is a chest CT scan (see Diagnosis ). After the first 2 years, people should receive a low-dose chest CT scan once a year. ASCO does not recommend using PET-CT scans with fluorodeoxyglucose (FDG), blood tests, or brain MRI as routine tests to watch for cancer recurrence. This information is based on ASCO recommendations ...

What is the follow up care for cancer patients?

Your follow-up care may include regular physical examinations, medical tests, or both. Doctors want to keep track of your recovery in the months and years ahead. Cancer rehabilitation may be recommended, and this could mean any of a wide range of services, such as physical therapy, career counseling, pain management, nutritional planning, ...

What is the goal of cancer rehabilitation?

The goal of rehabilitation is to help people regain control over many aspects of their lives and remain as independent and productive as possible. Learn more about cancer rehabilitation. Learn more about the importance of follow-up care.

image
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9