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Old 05-27-2011, 11:29 PM   #1
Pray
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wondering about how drs decide how many rads you recieve. I recieved 30.

Can any of you smart wonderful women who are way more informed than I, explain reason behind # of rads?
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Old 05-28-2011, 11:05 AM   #2
hutchibk
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Re: wondering about how drs decide how many rads you recieve. I recieved 30.

This is pretty scientific, but it may help you a little... http://jco.ascopubs.org/content/25/4/458.full

I believe the current standard of care is a total of 50gy (gray units) over apx 25 fractions. Fractions are the number of visits. So it's possible that instead of 2gy on each visit, your radiation onc gave you about 1.7gy per visit to get you to the total of 50gy over a 30 day period.

Does that make any sense at all? Hope so.
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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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Old 05-28-2011, 05:30 PM   #3
tricia keegan
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Re: wondering about how drs decide how many rads you recieve. I recieved 30.

Sorry I only know I got 33 and five boosts !!!
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Tricia
Dx July '05 IDC 1.9cm Triple positive 3/9 nodes positive
A/C X 4 ..Taxol/Herceptin x 12 wks then herceptin 1 yr
Rads x 36 ..oophorectomy August '06
Currently taking Arimidex..
June 2011 osteopenia/ zometa x1 yearly- stopped Zometa 2015 as Dexa show normal bone density.
Stopped Arimidex July 2014- Restarted Arimidex 2015 for a further two years on the advice of my Onc.
2014 Normal Dexa scan
2018 Mammo all clear, still NED!
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