Sherry - does this help? It sounds like low uptake is not a bad thing or something to worry too much about...
"Different tissues in your body take up different radionuclides, and therefore the radioactive substance used during a PET scan depends on the organ your doctor wants to investigate. The radioactive substance gives off tiny amounts of energy (radiation) in the form of positrons. These positrons are detected by a device called a PET scanner or gamma camera. The number of positrons emitted by an organ or area of tissue indicates how much of the radioactive substance the organ or tissue has taken up and, therefore, how chemically active it is. Areas that take up more glucose are more metabolically active and appear brighter on a PET scan. Areas that don't use much energy or that are damaged don't take up as much glucose and therefore aren't as bright on a PET scan.
Information from a PET scanner or gamma camera is processed and converted into images. A PET scan portrays chemical activity in parts of your body as images, or colors, of intensity. Areas of more intense color, or high uptake of the radioactive substance, are called hot spots. Areas of less intense color, which indicate a low uptake of radioactive substance, are called cold spots."
http://www.mayoclinic.com/health/pet-scan/CA00052
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Brenda
NOV 2012 - 9 yr anniversary
JULY 2012 - 7 yr anniversary stage IV (of 50...)
Nov'03~ dX stage 2B
Dec'03~ Rt side mastectomy, Her2+, ER/PR+, 10 nodes out, one node positive
Jan'04~ Taxotere/Adria/Cytoxan x 6, NED, no Rads, Tamox. 1 year, Arimadex 3 mo., NED 14 mo.
Sept'05~ micro mets lungs/chest nodes/underarm node, Switched to Aromasin, T/C/H x 7, NED 6 months - Herceptin only
Aug'06~ micro mets chest nodes, & bone spot @ C3 neck, Added Taxol to Herceptin
Feb'07~ Genetic testing, BRCA 1&2 neg
Apr'07~ MRI - two 9mm brain mets & 5 punctates, new left chest met, & small increase of bone spot C3 neck, Stopped Aromasin
May'07~ Started Tykerb/Xeloda, no WBR for now
June'07~ MRI - stable brain mets, no new mets, 9mm spots less enhanced, CA15.3 down 45.5 to 9.3 in 10 wks, Ty/Xel working magic!
Aug'07~ MRI - brain mets shrunk half, NO NEW BRAIN METS!!, TMs stable @ 9.2
Oct'07~ PET/CT & MRI show NED
Apr'08~ scans still show NED in the head, small bone spot on right iliac crest (rear pelvic bone)
Sept'08~ MRI shows activity in brain mets, completed 5 fractions/5 consecutive days of IMRT to zap the pesky buggers
Oct'08~ dropped Xeloda, switched to tri-weekly Herceptin in combo with Tykerb, extend to tri-monthly Zometa infusion
Dec'08~ Brain MRI- 4 spots reduced to punctate size, large spot shrunk by 3mm, CT of torso clear/pelvis spot stable
June'09~ new 3-4mm left cerrebellar spot zapped with IMRT targeted rads
Sept'09~ new 6mm & 1 cm spots in pituitary/optic chiasm area. Rx= 25 days of 3D conformal fractionated targeted IMRT to the tumors.
Oct'09~ 25 days of low dose 3D conformal fractionated targeted IMRT to the bone mets spot on rt. iliac crest that have been watching for 2 years. Added daily Aromasin back into treatment regimen.
Apr'10~ Brain MRI clear! But, see new small spot on adrenal gland. Change from Aromasin back to Tamoxifen.
June'10~ Tumor markers (CA15.3) dropped from 37 to 23 after one month on Tamoxifen. Continue to monitor adrenal gland spot. Remain on Tykerb/Herceptin/Tamoxifen.
Nov'10~ Radiate positive mediastinal node that was pressing on recurrent laryngeal nerve, causing paralyzed larynx and a funny voice.
Jan'11~ MRI shows possible activity or perhaps just scar tissue/necrotic increase on 3 previously treated brain spots and a pituitary spot. 5 days of IMRT on 4 spots.
Feb'11~ Enrolled in T-DM1 EAP in Denver, first treatment March 25, 2011.
Mar'11~ Finally started T-DM1 EAP in Denver at Rocky Mountain Cancer Center/Rose on Mar. 25... hallelujah.
"I would rather be anecdotally alive than statistically dead."
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