


Not sure exactly where it was, but looked like Wood Canyon area. FOtos are taken from our balcony.
MR Spectroscopy provides information about the presence and amount of hydrogen protons attached to different cerebral molecular compounds. These protons possess intrinsic differences in resonant frequencies (or chemical shift) due to their differing molecular environment. A spectrum can be generated that corresponds to a scale of resonant frequencies vs amplitude (concentration). Molecular compounds identified within cerebral tissue include N-acetyl-aspartate (NAA, a neuronal marker), choline (a cell membrane marker), creatinine and phosphocreatinine (energy metabolites), and lactate (a by-product of cerebral metabolism).
MR spectroscopy is useful in characterization of brain tumors. Compared to more benign tumors, malignant tumors have an increased rate of membrane turnover (increased level of choline) and a decreased concentration of neurons (decreased NAA). Spectroscopy has had some success in the pre-operative differentiation of various tumor types. More importantly, spectroscopy allows for the non-invasive monitoring of the response of residual tumor to therapy. Finally, spectroscopy can be utilized to differentiate tumor recurrence from tissue necrosis.
Then we got to CHLA and surprise, surprise… there was no parking in CHLA. There are 2 parking lots and valley parking. BUT LOTS were FULL. At that point I rolled down windows and asked- WHAT NOW, my daughter has chemo and MRS… what the heck do you think I should do?? Parking attendant just told me – I don’t know… Find parking. I wanted to get out of my fucking car and shake her till she apologized to me for telling me this… Then after few more circles and few more PARKING LOT full signs.. I pulled next to hospital security dude..( very handsome African American dude BTW).. And I started explaining him that I HAVE TO GET INTO CHLA RIGHT NOW. I was not even yelling at him, when I started telling him my daughter has chemo and MRS I just started crying and asked him—You tell me, what I have to do? We are patients and we can’t get in. It is never been this crazy before? What is going on. For my surprise he started apologizing to me. He told me that he understand how frustrating it is to me, and he asked me to pull aside and wait for few minutes till he checks parking garage… Few minutes later he told me to make another circle around and he will open parking garage for me.. I started crying even more—thanking him like I never thanked anyone before… and crying like it was my last day on earth….
TO be honest, everything is just building up inside.. Today when we got back all nurses were like- DIANA AND REGINA, YOU ARE BACK…. Child life workers were happy to see us, few other people……. And I was glad to see them tooo…But then questions started HOW is
Luckily we were in CHLA and it is OK to cry in hemo/onc floor. Then we found out that 2 more of our good friends have relapsed- both with Medulloblastomas… And this was their second time … I got even madder then. WHY??? What have these kids done to this world? Truth to be told- real sufferers are us, PARENTS. Feels like every one of our “sins” has to be punished in a very manic way… Cancer sucks… and I have only one questions to those who have lived with it for 20-30-40 years… Do you ever get over fear that IT might come back? Or you just forget about it and live happily ever after?
ANYWAY. We are in CHLA now,
MRS is scheduled to Sunday 1 PM. Till then we just have to stay sane…
MRI Spectroscopy (MRS) is a special technique used for characterization of the biochemistry of tumors, infarcts, and other pathology.
MRS is used to obtain information about chemical composition. MRS measurements are commonly made on chemical samples and tissues. In animals and humans a number of chemical concentrations can be obtained over a period of time. From this information, rates of change in specific metabolites can be determined.
MRS is useful for demonstrating aspects of physiology such as tumor aggressiveness and anaerobic metabolism.( FROM WWW)
Anyway, we still have slight hope that this is NOT tumor growing back, but very likely it is. We already discussed what are our options IF it is tumor... and this time there are not much available.
Of course I do have one good news. After we got home from CHLA today, i got a phone call from St Jude office here in Orange county. They gave us tickets to go to see WALKING WITH DINOSAURS in opening night in Staples center on September 25th 7PM. I am so exited. PS. Funny thing is I was just talking with my good friend about showing Reginas scans to our St Jude doctor. Maybe it is a sign.......:)