Researchers 3D-print first anatomic model of human heart

Heart experts have been able to successfully integrate two common imaging techniques to produce the first 3D anatomic model of a patient's heart.

This comes as the first instance of integration of computed tomography (CT) and 3D transesophageal echocardiography (3DTEE). The technique has been used in printing a hybrid 3D model of the heart.

The study would also open up a way for the techniques to be used in combination with a third tool - magnetic resonance imaging (MRI).

"This is a huge leap for individualised medicine in cardiology and congenital heart disease. The technology could be beneficial to cardiologists and surgeons," said Dr Joseph Vettukattil from Helen DeVos Children's Hospital in Michigan.

The model would promote better diagnostic capability and improved interventional and surgical planning, which would help determine whether a condition could be treated via transcatheter route or if it required surgery.

According to Jordan Gosnell, cardiac sonographer and lead author of the study, hybrid 3D printing integrated the best aspects of two or more imaging modalities.

Specialised software was used by the team to register images to selectively integrate datasets for producing an accurate anatomic model of the heart.

The result created more detailed and anatomically accurate 3D renderings and printed models, to allow physicians to better diagnose and treat heart disease.

Gosnell said previous 3-D priting methods utilised only one imaging modality, which might not be as accurate as merging two or more datasets.

CT and magnetic resonance imaging (MRI) were established imaging tools for production of 3-D printable models. The 3DTEE was recently reported by Vettukattil and his Helen DeVos Children's Hospital colleagues to be a feasible imaging technique to generate 3D printing in congenital heart disease.

Vettukattil said, each imaging tool had different strengths, which could improve and enhance 3-D printing. He added 3DTEE provided the best visualisation of valve anatomy.