ACCURATE INTELLIGENT & LIVE PREDICTIONS BY THE APPLICATION OF NEURAL TOOL 6.1.2 TO HIGHLIGHT PATHOLOGICAL CHANGES IN BRAIN WITHOUT THE USE OF INTRAVENOUS CONTRAST INJECTION TAPAN K BISWAS MD, D.M.R.D, F.R.C.R (1) ACKNOWLEDGEMENT FRE TRIAL VERSION OF NEURAL TOOL- CT SCANNER BRAIN TUMOUR CT IMAGE PLAIN CONTRASTED CONTRAST Ionic or non ionic Iodinated contrast is the most commonly used compounds for contrast enhancement. IODINE –has Atomic No.(Z-53) Com plications RADIATION HAZARD- May lead to Cancer DRUG REACTION-Minor allergic reaction to life thretning drug reaction ONE DEATH OUT OF 200,000 CONTRAST INJECTION. Contrast Mediated Nephrotoxicity (CMN) is another complication- K idney Disease CROSS SECTION OF CT SCANNER WEIRED IDEA ENHANCEMENT OF TUMOUR W I THOUT THE I ODI NATED CONTRAST I NJECTI ON TIME MACHINE TRAVEL TO FUTURE ?? TO RETRIEVE ENHANCEMENT SIGNAL DATA OF IMAGE ACCURATELY NEURAL NETWORK WEIRED IDEA CONTRAST ENHANCEMENT WITHOUT IODINATED MEDICINE LINEAR ATTENUATION COEFFICIENT INTERACTION OF XRAY WITH BODY TUMOR PHYSICS Inter-action of X Ray with matter X Ray-beam attenuated by tissue In CT Scan main way is Compton Scattering CT NUMBER Explains Tissue Character LINEAR ATTENUATION COEFFICIENT=µ CT NUMBER =(Tissue µ− water µ) x 1000 water µ HU=Hounsfield unit IODINATED CONTRAST IODINE-Atomic No.(Z-53) 1.IONIC 2.NON IONIC SIGNAL SHADE IN IMAGE CT NUMBER LOW (-1000 TO 20 HU) CT VALUE SHORT— (26 TO 32 HU) CT NUMBER HIGH AFETR CONTRAST--(45 TO 140HU) REQUIREMENTS FOR SIMULATION TECHNIQUES PRE CONTRAST CT VALUE OF TISSUES PRE CONTRAST SIGNAL SHADE (INTENSITY) IN THE IMAGE POST CONTRAST CT VALUE OF TISSUE POST CONTRAST SIGNAL SHADE IN THE IMAGE NEURAL TOOL TO LIVE PREDICT THE SHADES OF UNKNOWN TISSUE TO DETERMINE CT NUMBER SI=a (1-2e(-TI/T1) )-b). POSTCONTRAST CT VALUE OF TISSUE DECOMPOSITION OF PRE AND POST CONTRAST IMAGES TO GET GRAY SHADES PRE AND POST CONTRAST CT NUMBER & GRAY SHADES TISSUE CT NO1 GRAY SH GR SH CT NO2 CSF 1 25 26 1 CSF 2 27 27 2 CSF 3 28 28 3 CSF 4 30 30 4 CSF 5 32 32 5 EDEMA 7 36 36 7 EDEMA 9 38 38 9 EDEMA 11 39 39 11 EDEMA 13 42 42 13 white mtr 16 44 46 18 white mtr 18 46 49 20 white mtr 19 48 51 22 white mtr 22 51 53 24 Graymattr 26 59 63 29 Graymattr 28 66 69 31 Graymattr 31 78 80 35 Graymattr 32 89 91 36 Graymattr 34 94 99 37 Graymattr 37 99 104 30 TUMOUR 42 108 124 44 TUMOUR 44 112 143 47 TUMOUR 46 120 147 50 TUMOUR 49 122 155 52 TUMOUR 54 126 159 58 RELATIONSHIP OF PRE & POST CONTRAST CT VALUE 70 60 y = 1.061x + 0.050 50 40 Series1 Linear (Series1) 30 20 10 0 0 10 20 30 40 50 60 SEGMENTATION & K MEAN CLUSTERING By applying segmentation technique the grey shade values (out of 256) of various parts were determined and tabulated. K–mean clustering classified the data based on attributes/features. Each attribute represented the CT value of tissue before and after contrast and grey shade value (out of 256 shades) as their signal. PRE & POST CON CT NUMBER AND VALUES(K MEAN CLUSTERING) SL NEURAL NETWORK Mathematical Program SELECTION OF THE TIME MACHINE PALISADE DECISION TOOL NEURAL TOOLS 6.1.2 BRAIN AND BRAIN TUMOUR TRAINING OF DATA BY P ALI SADE NEURAL TOOL 6.1.2 CSF CSF CSF EDEMA EDEMA EDEMA EDEMA white mtr white mtr white mtr white mtr Graymattr Graymattr Graymattr Graymattr Graymattr Graymattr TUMOUR TUMOUR TUMOUR TUMOUR TUMOUR 3 4 5 7 9 11 13 16 18 19 22 26 28 31 32 34 37 42 44 46 49 54 28 30 32 36 38 39 42 44 46 48 51 59 66 78 89 94 99 108 112 120 122 126 28 30 32 36 38 39 42 46 49 51 53 63 69 80 91 99 104 124 143 147 155 159 3 4 5 7 9 11 13 18 20 22 24 29 31 35 36 37 30 44 47 50 52 58 DATA SET MANAGER TRAINED AND TESTED VALUES CSF CSF CSF EDEMA EDEMA EDEMA EDEMA white mtr white mtr white mtr white mtr Graymattr Graymattr Graymattr Graymattr Graymattr Graymattr TUMOUR TUMOUR TUMOUR TUMOUR TUMOUR 3 4 5 7 9 11 13 16 18 19 22 26 28 31 32 34 37 42 44 46 49 54 28 30 32 36 38 39 42 44 46 48 51 59 66 78 89 94 99 108 112 120 122 126 28 30 32 36 38 39 42 46 49 51 53 63 69 80 91 99 104 124 143 147 155 159 3 4 5 7 9 11 13 18 20 22 24 29 31 35 36 37 30 44 47 50 52 58 test train train train train train train train train train train test test train train test train train train train train test 3.15 Good -0.15 35.97 Good 35.64 Good -6.97 -4.64 32.77 Good 4.23 55.91 Good 2.09 TRAINING DATA TESTING Testing Report: "Net Trained on Data Set #16" TISSUE CSF CSF CSF CSF CSF EDEMA EDEMA EDEMA EDEMA white mtr white mtr white mtr white mtr Graymattr Graymattr Graymattr Graymattr Graymattr Graymattr TUMOUR TUMOUR TUMOUR TUMOUR TUMOUR CT NO1 GRAY SH 1 2 3 4 5 7 9 11 13 16 18 19 22 26 28 31 32 34 37 42 44 46 49 54 CT NO2 25 27 28 30 32 36 38 39 42 44 46 48 51 59 66 78 89 94 99 108 112 120 122 126 GR SH 1 2 3 4 5 7 9 11 13 18 20 22 24 29 31 35 36 37 30 44 47 50 52 58 Tag Used 26 27 28 30 32 36 38 39 42 46 49 51 53 63 69 80 91 99 104 124 143 147 155 159 test test test test test test test test test test test test test test test test test test test test test test test test Prediction Good/Bad 23.50Good 26.29Good 28.27Good 31.07Good 33.86Good 36.00Good 39.96Good 43.11Good 47.88Good 43.82Good 47.78Good 50.89Good 56.51Good 61.23Good 69.27Good 82.86Good 92.99Good 99.07Good 103.44Good 130.19Good 136.10Good 145.27Good 150.07Good 159.48Good Residual 2.50 0.71 -0.27 -1.07 -1.86 0.00 -1.96 -4.11 -5.88 2.18 1.22 0.11 -3.51 1.77 -0.27 -2.86 -1.99 -0.07 0.56 -6.19 6.90 1.73 4.93 -0.48 LIVE PREDICTION OF UNKNOWN INPUTS (PRECON CT) CSF CSF CSF CSF EDEMA EDEMA EDEMA EDEMA white mtr white mtr white mtr white mtr Graymattr Graymattr Graymattr Graymattr Graymattr Graymattr TUMOUR TUMOUR TUMOUR TUMOUR TUMOUR 2 3 4 5 7 9 11 13 16 18 19 22 26 28 31 32 34 37 42 44 46 49 54 27 28 30 32 36 38 39 42 44 46 48 51 59 66 78 89 94 99 108 112 120 122 126 2 3 4 5 7 9 11 13 18 20 22 24 29 31 35 36 37 30 44 47 50 52 58 27 28 30 32 36 38 39 42 46 49 51 53 63 69 80 91 99 104 predict predict predict predict predict 132.39 138.04 147.66 151.66 159.33 MAPPING OR SIMULATION OF ENHANCEMENT MAPPING OR CONTRAST SIMULATION PLAIN CONTRAST CONTRAST SIMULATION CONTRAST EFFECT OF THE TUMOUR PREDICTED VS ACTUAL CT NUMBER(TRAINING) Predicted vs. Actual (Training) 180 160 140 120 80 60 40 180 160 140 Actual 120 80 60 40 20 0 100 20 0 Predicted 100 R-Square (Training), Root mean Sq error(training), Root mean Sq (Testing) Linear Predictor vs. Neural Net Linear Predictor Neural Net R-Square (Training) 0.6228 — Root Mean Sq. Error (Training & prediction) 130 .30 0.0001502 ENHANCEMENT WITHOUT IV CONTRAST Determination pre-contrast CT VALUE Determination post contrast CT VALUE Segmentation to get signal shades of images Grouping or K mean clustering of values Neural network to predict post contrast CT VALUE or signal shades Mapping or simulation ADVANTAGE OF VIRTUAL CONTRAST LIKE EFFECT 1.No injection –so no hazard of drug reaction or death No Kidney toxicity No extra cost of the Medicine or injection 2.No re scan—so no extra radiation dose and minimizing the chance of cancer. ? WEIRED IDEAS –THANKS TO PALISADE NEURAL TOOL6.1.2