A device for supporting the positioning of a medical interventional device, comprising: - a data input interface; - a data processing unit; and - a data output interface; wherein the data input interface is configured to provide a sequence of images of a region of interest of a subject; wherein the data processing unit is configured to perform, for each of the images, following steps: i) to detect, in each image, at least one apparatus position marker of a guiding apparatus for a medical interventional device at least partly being arranged in the region of interest; ii) to define a proximity region in each image based on the at least one apparatus position marker; iii) to detect, in the proximity region of each image, device position markers of the medical interventional device at least partly being arranged in the region of interest, and iv) to enhance the device position markers in each image for supporting a positioning of the medical interventional device; wherein the device position markers are less visible in the image than the at least one apparatus position marker, and wherein the data output interface is configured to provide each image with the enhanced device position markers. - a data input interface; - a data processing unit; and - a data output interface; wherein the data input interface is configured to provide a sequence of images of a region of interest of a subject; wherein the data processing unit is configured to perform, for each of the images, following steps: i) to detect, in each image, at least one apparatus position marker of a guiding apparatus for a medical interventional device at least partly being arranged in the region of interest; ii) to define a proximity region in each image based on the at least one apparatus position marker; iii) to detect, in the proximity region of each image, device position markers of the medical interventional device at least partly being arranged in the region of interest, and iv) to enhance the device position markers in each image for supporting a positioning of the medical interventional device; wherein the device position markers are less visible in the image than the at least one apparatus position marker, and wherein the data output interface is configured to provide each image with the enhanced device position markers. wherein the data input interface is configured to provide a sequence of images of a region of interest of a subject; wherein the data processing unit is configured to perform, for each of the images, following steps: i) to detect, in each image, at least one apparatus position marker of a guiding apparatus for a medical interventional device at least partly being arranged in the region of interest; ii) to define a proximity region in each image based on the at least one apparatus position marker; iii) to detect, in the proximity region of each image, device position markers of the medical interventional device at least partly being arranged in the region of interest, and iv) to enhance the device position markers in each image for supporting a positioning of the medical interventional device; i) to detect, in each image, at least one apparatus position marker of a guiding apparatus for a medical interventional device at least partly being arranged in the region of interest; ii) to define a proximity region in each image based on the at least one apparatus position marker; iii) to detect, in the proximity region of each image, device position markers of the medical interventional device at least partly being arranged in the region of interest, and iv) to enhance the device position markers in each image for supporting a positioning of the medical interventional device; wherein the device position markers are less visible in the image than the at least one apparatus position marker, and wherein the data output interface is configured to provide each image with the enhanced device position markers.