What does SUV mean on PET scan results?

The use of standardized uptake values (SUVs) is now common place in clinical FDG-PET/CT oncology imaging, and has a specific role in assessing patient response to cancer therapy. Ideally, the use of SUVs removes variability introduced by differences in patient size and the amount of injected FDG.

What is a PET scan for lymph nodes?

PET scans are a type of test that create 3 dimensional (3D) pictures of the inside of your body. PET stands for positron emission tomography. The PET scan uses a mildly radioactive drug to show up areas of your body where cells are more active than normal. It’s used to help diagnose some conditions including cancer.

Does a PET scan show enlarged lymph nodes?

PET scan: A PET scan, which uses a small amount of radioactive material, can help show if an enlarged lymph node is cancerous and detect cancer cells throughout the body that may not be seen on a CT scan.

What is a normal lung SUV?

A weighted average calculation including the data from two previously published studies from other labs show the average mean SUV of normal lung parenchyma to be 0.52 (n=279).

What is a high SUVmax?

Patients with a high SUVmax (>or=13.4) had a significantly reduced disease-free survival rate compared to patients with a low SUVmax (P=0.021). In addition, the SUVmax (>or=13.4) was a significant independent predictor of recurrence of cervical cancer after treatment with surgery (+/-adjuvant therapy) (P=0.0207).

Can you see lymphoma on a PET scan?

Unlike other imaging technology, such as a CT scan or an MRI, a PET scan can definitively show if the lymphoma is still active because it reveals chemical activity within tissues and organs. For example, a patient with Hodgkin lymphoma may have a mass develop as part of the disease.

How high can a SUV go on a PET scan?

The highest SUV in a transformed lymphoma PET scan (SUV(study-max)) ranged from 3.2 to 40, mean 15, median 12. Twenty-five of 40 patients (63%) presented with an SUV(study-max)>10 and 20 (50%)>13.

What is the SUV of the lymph nodes associated with cancer?

Maximum SUV for the primary tumor > 8.0 was predictive of worse overall survival (p < 0.045), while the SUV of the lymph nodes was predictive for distant recurrence at one year–with a mean SUV value of 10.4 for patients with distant failure vs. 7.0 without (p < 0.05). Conclusions

What is the normal range of SUV for lymph nodes?

The median maximum SUV was 5.95 with a range of 2 to 25 for the lymph node, when multiple lymph nodes were found, only the lymph node with the highest SUV was used.

Does lymph node nodal status affect SUV of lymph nodes?

On a repeated measures ANOVA, there was no difference in median SUV of the lymph node based on nodal status (N1 versus N2-3). Imaging modality was a PET scan in 119 patients and a PET/CT scan in 93 patients. For the 110 patients with post-PET neck dissections, 55 had PET-CT scans and 55 had PET scans.

Can PET imaging correctly identify lymph nodes with extracapsular extension?

The PPV and NPV of PET imaging to correctly identify lymph node status was 94% and 89% respectively. Lymph nodes with extracapsular extension (ECE) had higher SUVs than nodes without ECE, 11.0 vs. 5.0 (p < 0.0007).