char = C;code = 67
char = o;code = 111
char = r;code = 114
char = o;code = 111
char = n;code = 110
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char = r;code = 114
char = y;code = 121
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char = c;code = 99
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char = u;code = 117
char = m;code = 109
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = u;code = 117
char = s;code = 115
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char = n;code = 110
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char = ;code = 32
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = -;code = 45
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char = o;code = 111
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char = e;code = 101
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char = l;code = 108
char = u;code = 117
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char = g;code = 103
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = :;code = 58
char = ;code = 32
char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
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char = i;code = 105
char = v;code = 118
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = M;code = 77
char = D;code = 68
char = C;code = 67
char = T;code = 84
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = s;code = 115
char = p;code = 112
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char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
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char = r;code = 114
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = .;code = 46
result sql = Coronary calcium screening using low-dose lung cancer screening: effectiveness of MDCT with retrospective reconstruction.
Coronary calcium screening using low-dose lung cancer screening: effectiveness of MDCT with retrospective reconstruction.
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = O;code = 79
char = B;code = 66
char = J;code = 74
char = E;code = 69
char = C;code = 67
char = T;code = 84
char = I;code = 73
char = V;code = 86
char = E;code = 69
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = u;code = 117
char = r;code = 114
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = e;code = 101
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = o;code = 111
char = u;code = 117
char = r;code = 114
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = y;code = 121
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = s;code = 115
char = h;code = 104
char = o;code = 111
char = w;code = 119
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
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char = u;code = 117
char = s;code = 115
char = e;code = 101
char = f;code = 102
char = u;code = 117
char = l;code = 108
char = n;code = 110
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char = s;code = 115
char = s;code = 115
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = n;code = 110
char = o;code = 111
char = n;code = 110
char = g;code = 103
char = a;code = 97
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char = e;code = 101
char = d;code = 100
char = ;code = 32
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = -;code = 45
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char = e;code = 101
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = c;code = 99
char = o;code = 111
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char = o;code = 111
char = n;code = 110
char = a;code = 97
char = r;code = 114
char = y;code = 121
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char = s;code = 115
char = c;code = 99
char = r;code = 114
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char = e;code = 101
char = n;code = 110
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char = n;code = 110
char = g;code = 103
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char = b;code = 98
char = y;code = 121
char = ;code = 32
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char = p;code = 112
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = c;code = 99
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = a;code = 97
char = s;code = 115
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char = r;code = 114
char = e;code = 101
char = m;code = 109
char = e;code = 101
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char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = d;code = 100
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = c;code = 99
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = -;code = 45
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = M;code = 77
char = A;code = 65
char = T;code = 84
char = E;code = 69
char = R;code = 82
char = I;code = 73
char = A;code = 65
char = L;code = 76
char = S;code = 83
char = ;code = 32
char = A;code = 65
char = N;code = 78
char = D;code = 68
char = ;code = 32
char = M;code = 77
char = E;code = 69
char = T;code = 84
char = H;code = 72
char = O;code = 79
char = D;code = 68
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = O;code = 79
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = h;code = 104
char = u;code = 117
char = n;code = 110
char = d;code = 100
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = w;code = 119
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = y;code = 121
char = -;code = 45
char = e;code = 101
char = i;code = 105
char = g;code = 103
char = h;code = 104
char = t;code = 116
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = e;code = 101
char = c;code = 99
char = u;code = 117
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = i;code = 105
char = p;code = 112
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = ;;code = 59
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = 5;code = 53
char = 2;code = 50
char = ;code = 32
char = +;code = 43
char = /;code = 47
char = -;code = 45
char = ;code = 32
char = 7;code = 55
char = ;code = 32
char = y;code = 121
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = s;code = 115
char = );code = 41
char = ;code = 32
char = u;code = 117
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char = d;code = 100
char = e;code = 101
char = r;code = 114
char = w;code = 119
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = l;code = 108
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char = w;code = 119
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char = d;code = 100
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char = s;code = 115
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = c;code = 99
char = i;code = 105
char = u;code = 117
char = m;code = 109
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char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = E;code = 69
char = C;code = 67
char = G;code = 71
char = ;code = 32
char = g;code = 103
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = g;code = 103
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char = u;code = 117
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char = n;code = 110
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char = ;code = 32
char = 4;code = 52
char = 0;code = 48
char = -;code = 45
char = M;code = 77
char = D;code = 68
char = C;code = 67
char = T;code = 84
char = .;code = 46
char = ;code = 32
char = L;code = 76
char = o;code = 111
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char = d;code = 100
char = o;code = 111
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = ;code = 32
char = v;code = 118
char = o;code = 111
char = l;code = 108
char = u;code = 117
char = m;code = 109
char = e;code = 101
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char = d;code = 100
char = a;code = 97
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char = a;code = 97
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char = e;code = 101
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char = r;code = 114
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char = u;code = 117
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char = a;code = 97
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char = c;code = 99
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char = e;code = 101
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char = s;code = 115
char = l;code = 108
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char = c;code = 99
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char = s;code = 115
char = e;code = 101
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char = i;code = 105
char = o;code = 111
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char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
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char = a;code = 97
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char = e;code = 101
char = a;code = 97
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char = ;code = 32
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char = g;code = 103
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char = s;code = 115
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char = c;code = 99
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char = m;code = 109
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char = s;code = 115
char = s;code = 115
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char = e;code = 101
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char = u;code = 117
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char = d;code = 100
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char = 9;code = 57
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char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = 1;code = 49
char = 3;code = 51
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char = H;code = 72
char = ;code = 32
char = t;code = 116
char = h;code = 104
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char = h;code = 104
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char = l;code = 108
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char = e;code = 101
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char = s;code = 115
char = ;code = 32
char = (;code = 40
char = 1;code = 49
char = 3;code = 51
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char = H;code = 72
char = ;code = 32
char = t;code = 116
char = h;code = 104
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char = f;code = 102
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char = o;code = 111
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char = a;code = 97
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char = e;code = 101
char = a;code = 97
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char = ;code = 32
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char = ;code = 32
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char = r;code = 114
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char = e;code = 101
char = ;code = 32
char = c;code = 99
char = r;code = 114
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char = t;code = 116
char = e;code = 101
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char = /;code = 47
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char = <;code = 60
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char = >;code = 62
char = C;code = 67
char = O;code = 79
char = N;code = 78
char = C;code = 67
char = L;code = 76
char = U;code = 85
char = S;code = 83
char = I;code = 73
char = O;code = 79
char = N;code = 78
char = ;code = 32
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char = ;code = 32
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char = /;code = 47
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char = >;code = 62
char = U;code = 85
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
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char = w;code = 119
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char = d;code = 100
char = i;code = 105
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char = i;code = 105
char = o;code = 111
char = n;code = 110
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char = o;code = 111
char = s;code = 115
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char = d;code = 100
char = ;code = 32
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char = C;code = 67
char = T;code = 84
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char = w;code = 119
char = e;code = 101
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char = n;code = 110
char = ;code = 32
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char = e;code = 101
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char = ;code = 32
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char = r;code = 114
char = t;code = 116
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char = r;code = 114
char = y;code = 121
char = ;code = 32
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char = c;code = 99
char = i;code = 105
char = u;code = 117
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char = ;code = 32
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char = ;code = 32
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char = l;code = 108
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = c;code = 99
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char = a;code = 97
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char = l;code = 108
char = e;code = 101
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char = o;code = 111
char = ;code = 32
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char = e;code = 101
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char = t;code = 116
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = d;code = 100
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = c;code = 99
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = -;code = 45
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = C;code = 67
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char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = h;code = 104
char = i;code = 105
char = g;code = 103
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = E;code = 69
char = C;code = 67
char = G;code = 71
char = ;code = 32
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result sql = OBJECTIVE : The purpose of our study was to show the usefulness of nongated low-dose chest CT for coronary screening by comparing the results of coronary artery calcium measurement with that of dedicated calcium-scoring CT.

MATERIALS AND METHODS : One hundred twenty-eight consecutive participants (all men; mean age, 52 +/- 7 years) underwent low-dose chest CT and calcium-scoring CT with prospective ECG gating using 40-MDCT. Low-dose chest CT volume data were reconstructed as 25-cm field of view and three slice thicknesses: 1, 2.5, and 5 mm. For each examination, the lesion area, Agatston calcium score, and calcium mass were measured at 90- and 130-H thresholds. All measurements (130-H threshold) from the calcium-scoring CT were used as reference standards. Spearman's correlation test was used to compare the results.

RESULTS : Among the low-dose chest CT examinations, sensitivity was best determined with a 1-mm slice thickness at 130 H and 2.5-mm slice thickness at 90 H. Specificity was best determined with a 5-mm slice thickness at 130 H. Accuracy (90%) was best determined with a 2.5-mm slice thickness at 130 H. Of all protocols, calcium area, score, and mass from a 2.5-mm slice thickness at 130 H correlated best with the reference results (r = 0.89 for all three criteria).

CONCLUSION : Using a low radiation dose and nongated MDCT, we can detect coronary artery calcium and obtain results comparable to those obtained with dedicated calcium-scoring CT that uses a higher dose and ECG gating.

Publication: AJR Am J Roentgenol 2008 Apr ;190(4)::917-22. :doi: 10.2214/AJR.07.2979.
Publication Date: 2008 Apr
Study Author(s): Kim, Sung Mok;Chung, Myung Jin;Lee, Kyung Soo;Choe, Yeon Hyun;Yi, Chin A;Choe, Bong-Keun;
Institution: Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea.
Shortcut link to this study:
OBJECTIVE : The purpose of our study was to show the usefulness of nongated low-dose chest CT for coronary screening by comparing the results of coronary artery calcium measurement with that of dedicated calcium-scoring CT.

MATERIALS AND METHODS : One hundred twenty-eight consecutive participants (all men; mean age, 52 +/- 7 years) underwent low-dose chest CT and calcium-scoring CT with prospective ECG gating using 40-MDCT. Low-dose chest CT volume data were reconstructed as 25-cm field of view and three slice thicknesses: 1, 2.5, and 5 mm. For each examination, the lesion area, Agatston calcium score, and calcium mass were measured at 90- and 130-H thresholds. All measurements (130-H threshold) from the calcium-scoring CT were used as reference standards. Spearman's correlation test was used to compare the results.

RESULTS : Among the low-dose chest CT examinations, sensitivity was best determined with a 1-mm slice thickness at 130 H and 2.5-mm slice thickness at 90 H. Specificity was best determined with a 5-mm slice thickness at 130 H. Accuracy (90%) was best determined with a 2.5-mm slice thickness at 130 H. Of all protocols, calcium area, score, and mass from a 2.5-mm slice thickness at 130 H correlated best with the reference results (r = 0.89 for all three criteria).

CONCLUSION : Using a low radiation dose and nongated MDCT, we can detect coronary artery calcium and obtain results comparable to those obtained with dedicated calcium-scoring CT that uses a higher dose and ECG gating.
PMID: 18356437

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