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06-25-2007, 03:25 PM
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#1
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Senior Member
Join Date: Aug 2006
Location: Sheboygan, WI
Posts: 2,582
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Think my little question/comment got lost in the "if you starved cancer of glucose"
Hello,
I posted a comment/kind of question under the "if you starved cancer of glucose" post but think it got lost or ignored SO I'll throw it out here. 
When I had my PET/CT scan I was told to eat no or very little carbs 24 hours before the test. I was also told not to vigorously exercise 24 hours before the test either. Why was that and what does that say about exercise in general? Don't get me wrong, I'm an avid exerciser (4 - 6 miles a day powerwalk/a little jogging) and wouldn't stop no matter what. It's actually a favorite part of my day. I'm not bringing it up to try to get out of exercise. Just curious.
Thanks anyone and everyone.
Mary Jo
__________________
"Be still and know that I am God." Psalm 46:10
Dx. 6/24/05 age 45 Right Breast IDC ER/PR. Neg., - Her2+++ RB Mast. - 7/28/05 - 4 cm. tumor Margins clear - 1 microscopic cell 1 sent. node No Vasucular Invasion 4 DD A/C - 4 DD Taxol & Herceptin 1 full year of Herceptin received every 3 weeks 28 rads prophylactic Mast. 3/2/06
17 Years NED
<>< Romans 8:28
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06-25-2007, 04:29 PM
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#2
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Webmaster
Join Date: Feb 2005
Location: Home of the "Flying Tomato"
Carlsbad, CA
Posts: 2,036
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You may have to hit "reload" on your browser to see messages that you have posted.
Regards
Joe
__________________
A Proud webmaster to the internet's most informed, educated, COMPASSIONATE and caring group of breast cancer survivors.
Illegitimi non carborundum
My Album
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06-25-2007, 04:37 PM
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#3
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Senior Member
Join Date: Jan 2007
Location: UK
Posts: 617
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Hi Marejo,
My opinion:
The reason why they asked you to not eat carb prior to scan is because they wanted to overload your system with glucose with an injection.(pet injection is labelled glucose) This would provide your body with a peak of blood sugar on which the cancer would greedily feed on.
Exercising hard require glucose which your body will produce from liver glycogene store. And therefore again it would dilute the effect of a surge of glucose from the injection and/or possibly show up muscle cell feeding on glucose.
__________________
35 y/o
June 06: BC stage I
Grade 3; ER/PR neg
Her-2+++; lumpectomies
Aug 06: Stage IV
liver mets: 6 tumours
July 06 to Jan 07: 2*FEC+6*Taxotere; 3*TACE; LITT
March 07- Sept 07: Vaccination trial (phase 2, peptide based) at the UW (Seattle).
Herceptin since 2006
NED til Oct 09
Recurrence Oct 2009: to internal mammary gland since October 2009 missed on Oct and March 2010 scan.. palpable nodes in May 2010 when I realised..
Nov 2011:7 mets to lungs progressing fast failed hercp/tykerb/xeloda combo..
superior vena cava blocked: stent but face remains puffy
April 2012: Teresa Trial, randomised to TDM1
Nov 2012 progressing on TDM1
Dec 2012 blockage of my airways by tumours, obliteration of these blocking tumours breathing better but hoping for more- at mo too many tumours to count in the lungs and nodes.
Dec 2012 Starting new trial S-222611 phase 1b dual egfr her2+ inhibitor.
'Under no circumstances should you lose hope..' Dalai Lama
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06-25-2007, 05:14 PM
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#4
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Senior Member
Join Date: Sep 2005
Location: Central Coast, CA
Posts: 3,207
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I think it is something slightly different - but I admit to being slightly ignorant on this!
I think since the PET measures glucose uptake, they want the "only" glucose in your system to be the radioactively tagged one they inject. I think they want you to avoid exercise because using your muscles would direct energy (glucose) to the muscles and cause false positive readings. Inflammation can also light up on a PET scan, so maybe it's related to that.
but, now that I've exposed my ignorance, I intend to find out these answers for real. I have one scheduled on July 16 and will ask there - although I'm sure by then you'll have better answers from here!
__________________
Chris in Scotts Valley
June 2002 extensive hi grade DCIS (pre-cancer-stage 0, clean sentinal node) Mastectomy/implant - no chemo, rads. "cured?"
9/2004 Diag: Stage IV extensive liver mets (!) ER/PR- Her2+++
10/04-3/05 Weekly Taxol/Carboplatin/Herceptin , complete response!
04/05 - 4/07 Herception every 3 wks, Continue NED
04/07 - recurrence to liver - 2 spots, starting tykerb/avastin trial
06/07 8/07 10/07 Scans show stable, continue on Tykerb/Avastin
01/08 Progression in liver
02/08 Begin (TDM1) trial
08/08 NED! It's Working! Continue on TDM1
02/09 Continue NED
02/10 Continue NED. 5/10 9/10 Scans NED 10/10 Scans NED
12/10 Scans not clear....4/11 Scans suggest progression 6/11 progression confirmed in liver
07/11 - 11/11 Herceptin/Xeloda -not working:(
12/11 Begin MM302 Phase I trial - bust:(
03/12 3rd times the charm? AKT trial
5/12 Scan shows reduction! 7/12 More reduction!!!!
8/12 Whoops...progression...trying for Perjeta/Herceptin (plus some more nasty chemo!)
9/12 Start Perjeta/Herceptin, chemo on hold due to infection/wound in leg, added on cycle 2 &3
11/12 Poops! progression in liver, Stop Perjeta/Taxo/Herc
11/12 Navelbine/Herce[ptin - try for a 3 cycles, no go.
2/13 Gemzar/Carbo/Herceptin - no go.
3/13 TACE procedure
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06-25-2007, 05:56 PM
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#5
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Senior Member
Join Date: Sep 2005
Location: Stockton, NJ
Posts: 4,179
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Dear Mary Jo
Full of Beans said it right on.
__________________
Kind regards
Becky
Found lump via BSE
Diagnosed 8/04 at age 45
1.9cm tumor, ER+PR-, Her2 3+(rt side)
2 micromets to sentinel node
Stage 2A
left 3mm DCIS - low grade ER+PR+Her2 neg
lumpectomies 9/7/04
4DD AC followed by 4 DD taxol
Used Leukine instead of Neulasta
35 rads on right side only
4/05 started Tamoxifen
Started Herceptin 4 months after last Taxol due to
trial results and 2005 ASCO meeting & recommendations
Oophorectomy 8/05
Started Arimidex 9/05
Finished Herceptin (16 months) 9/06
Arimidex Only
Prolia every 6 months for osteopenia
NED 18 years!
Said Christopher Robin to Pooh: "You must remember this: You're braver than you believe and stronger than you seem and smarter than you think"
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06-25-2007, 06:22 PM
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#6
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Senior Member
Join Date: Oct 2005
Posts: 823
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Thanks much for these answer's, as my PET Scan is this coming Wednesday, (June 27).
They did tell me to drink lot's water.
__________________
Vicki
Texas
Biopsy Dx'd 3-23-05 Age 48
MRM 4-5-05 w/ 2 tumor's 5cm, and 6 cm (right side)
IDC (poorly differentiated infiltrating ductual carcinoma)
5+/16 nodes
Stage III A
Grade 3
ER/PR-, Her2/neu ++
Ki67 78%
Begin Chemo 5-2-05 4XAC Dose Dense , 4X Abraxane Dose Dense (ended August 05)
28 Rad's ended October 13 2005
Started Herceptin Weekly August 2005 for one year
Had a Simple mastectomy left side after Mamo showed incresed micro-calcifications. Jan. 17 2006.
Brain MRI Feb.2006--All Clear
August 28, 2006 Last Weekly Herceptin.
October 2006--Colonoscopy, 6 Polyp's removed--all B9
PET Scan July 2007
Abdominal MRI Oct. 2007---2 Right Kidney Cysts
Core Biopsy-- Lump on Scar Line 1-10-08---B9
Brain MRI 6-2008--All Clear
PET/CT Scan 6-2008
Sept. 8 2008, 4CM area removed from mastectomy scar line. Proved to be B9.
PET/CT Scan-- July 2009 --All clear
August 17,2009 ---Had Port Removed
6 Years NED -- April 5,2011
DX'd with Melanoma left arm 10-10-2011
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