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Binary file added Detecção Automática do Teste de Winston-Lutz em Filmes Radiocrômicos.pdf
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175 changes: 175 additions & 0 deletions WL_ggiacomini_v1.m
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%% Avalia��o do Teste de Winston-Lutz
%Detec��o autom�tica Winston-Lutz
%Calibrado para WL com imagens do iView
%Campo quadrado (2.0cm x 2.0cm)
%Esfera de 8mm de di�metro (Phantom Ball Bearing Elekta)

clear all
close all
DiametroEsfera_mm=8;
TamanhoCampo_mm=20;

% operador=input('Entre com o nome do Operador: ','s' );
data=date;
[Filename, Pathname] = uigetfile('*','Selecionar imagem do Winston-Lutz','Multiselect','on');


%%
if iscell(Filename)==1; %AJUSTAR PARA IMAGEM UNICA
%%


for i=1:length(Filename)
Filename1=Filename{i};
m=[Pathname Filename1];
im = dicomread(m);
info=dicominfo(m);
orient=Filename{i};
orient=orient(1:end-4);

im2=im2double(im);
size_pixel_mm=info.ImagePlanePixelSpacing(1);
mag=info.RTImageSID/info.RadiationMachineSAD;

size_field_px=TamanhoCampo_mm*mag/info.ImagePlanePixelSpacing(1);
raio_esfera_px=((DiametroEsfera_mm/2)*mag)/info.ImagePlanePixelSpacing(1);

campo=zeros(size(im2));
campo(im2<0.64)=1;

CC = bwconncomp(campo);
numPixels = cellfun(@numel,CC.PixelIdxList);
[biggest,idx] = max(numPixels);
campob=zeros(size(campo));
campob(CC.PixelIdxList{idx}) = 1;
campo=campob;

esfera=ones(size(im2));
esfera(im2<.45)=0;
CC = bwconncomp(esfera);
numPixels = cellfun(@numel,CC.PixelIdxList);
[biggest,idx] = max(numPixels);
esfera(CC.PixelIdxList{idx}) = 0;


%Centr�ide
measurementscampo = regionprops(campo, 'centroid');
centroidcampo = [measurementscampo.Centroid];
centroidcampo=round(centroidcampo);

measurementsesfera = regionprops(esfera, 'Centroid');
centroidesfera = [measurementsesfera.Centroid];
centroidesfera=round(centroidesfera);

distancia_x_mm=(size_pixel_mm/mag)*(centroidcampo(1)-centroidesfera(1));
distancia_y_mm=-(size_pixel_mm/mag)*(centroidcampo(2)-centroidesfera(2));
distancia_mm= (size_pixel_mm/mag)*((((centroidcampo(1)-centroidesfera(1))^2)+((centroidcampo(2)-centroidesfera(2))^2))^.5);

%%Ajuste manual

% resp3=input('Confirma detec��o?: 0-n�o 1-OK ' );
%
% if resp3==0
% figure, imshow(im2,[]);
%
% xlabel('Defina as bordas do campo manualmente');
% title([info.SeriesDescription(5:end)])
%
%
% mask_campo = imrect(gca,[512 512 size_field_px size_field_px]);
% wait(mask_campo);
% campo_manual=createMask(mask_campo);
%
% xlabel('Defina a posi��o da esfera manualmente');
% mask_esfera = imellipse(gca,[512 512 raio_esfera_px*2 raio_esfera_px*2]);
% wait(mask_esfera);
% esfera_manual=createMask(mask_esfera);
%
%
% measurementscampomanual = regionprops(campo_manual, 'Centroid');
% centroidcampomanual = [measurementscampomanual.Centroid];
% centroidcampo=round(centroidcampomanual);
% measurementsesferamanual = regionprops(esfera_manual, 'Centroid');
% centroidesferamanual = [measurementsesferamanual.Centroid];
% centroidesfera=round(centroidesferamanual);
% end
%%%%%%%%%%%%%%%%%%


ordem_imagens{i}=[orient];
centroid_esfera_full(i,:)=centroidesfera;
centroid_campo_full(i,:)=centroidcampo;
imagens(:,:,i)=im2;
distancia_mm_full(i)=distancia_mm;
distancia_x_mm_full(i)=distancia_x_mm;
distancia_y_mm_full(i)=distancia_y_mm;
end
end

%%Imagem com resultados absolutos
figure
for i=1:length(Filename)

subplot(3,3,i)
imshow(imagens(:,:,i),[],'InitialMagnification',200);
zoom(6);
title(ordem_imagens{i});
xlabel(distancia_x_mm_full(i));
ylabel(distancia_y_mm_full(i));
hold on
plot(centroid_campo_full(i,1),centroid_campo_full(i,2),'xr');
plot(centroid_esfera_full(i,1),centroid_esfera_full(i,2),'xg');
viscircles(centroid_esfera_full(i,:),raio_esfera_px,'EdgeColor','g');
rectangle('Position',[centroid_campo_full(i,1)-(size_field_px/2) centroid_campo_full(i,2)-(size_field_px/2) size_field_px size_field_px],'EdgeColor','r');
end


%Imprimir Tabela (Orienta��o)
tabela={'Campo', 'Long(mm)','Lat(mm)','Vert(mm)'};
for i=1:length(Filename)
tabela{i+1,1}=ordem_imagens{i};
end

for i=1:length(Filename)
if strcmp(tabela{i+1,1},'G0T0C0')==1
tabela{i+1,2}=num2str(distancia_y_mm_full(i));
tabela{i+1,3}=num2str(distancia_x_mm_full(i));
else if strcmp(tabela{i+1,1},'G0T0C90')==1
tabela{i+1,2}=num2str(distancia_y_mm_full(i));
tabela{i+1,3}=num2str(distancia_x_mm_full(i));
else if strcmp(tabela{i+1,1},'G0T0C270')==1
tabela{i+1,2}=num2str(distancia_y_mm_full(i));
tabela{i+1,3}=num2str(distancia_x_mm_full(i));
else if strcmp(tabela{i+1,1},'G0T90')==1
tabela{i+1,3}=num2str(distancia_y_mm_full(i));
tabela{i+1,2}=num2str(-distancia_x_mm_full(i));
else if strcmp(tabela{i+1,1},'G0T270')==1
tabela{i+1,3}=num2str(-distancia_y_mm_full(i));
tabela{i+1,2}=num2str(distancia_x_mm_full(i));

else if strcmp(tabela{i+1,1},'G90T0')==1
tabela{i+1,2}=num2str(distancia_y_mm_full(i));
tabela{i+1,4}=num2str(-distancia_x_mm_full(i));

else if strcmp(tabela{i+1,1},'G180T0')==1
tabela{i+1,2}=num2str(distancia_y_mm_full(i));
tabela{i+1,3}=num2str(-distancia_x_mm_full(i));

else if strcmp(tabela{i+1,1},'G270T0')==1
tabela{i+1,2}=num2str(distancia_y_mm_full(i));
tabela{i+1,4}=num2str(distancia_x_mm_full(i));

end
end
end
end
end
end
end
end

end
tabela


save(['TesteWL_Boldrini_',info.StudyDate],'centroid_campo_full','Filename','centroid_esfera_full','distancia_x_mm_full','distancia_y_mm_full','DiametroEsfera_mm','imagens','mag','ordem_imagens','raio_esfera_px', 'size_field_px','size_pixel_mm','tabela','TamanhoCampo_mm')