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Cetak 3 - D jantung  menggunakan beberapa teknik pencitraan 

Ekokardiografi dan CT dikombinasikan untuk menghasilkan “heart model”

Date:

June 26, 2015

Source:

Spectrum Health

Summary:

Ahli jantung bawaan telah berhasil mengintegrasikan dua teknik pencitraan umum untuk menghasilkan model anatomi tiga dimensi jantung pasien . Ini adalah pertama kalinya integrasi computed tomography ( CT ) dan tiga - dimensi echocardiography transesophageal ( 3DTEE ) telah digunakan pada  cara ini . Sebuah bukti – dari -konsep penelitian yang juga membuka jalan bagi teknik ini digunakan dalam kombinasi dengan alat ketiga - magnetic resonance imaging ( MRI ) .

.............. " Cetak 3D Hybrid mengintegrasikan aspek terbaik dari dua atau lebih modalitas pencitraan , yang berpotensi dapat meningkatkan diagnosis , serta perencanaan intervensi dan bedah , " kata Jordan Gosnell , sonogram jantung anak-anak rumah sakit Helen DeVos , dan penulis utama studi tersebut . " Metode sebelumnya pada pencetakan 3D menggunakan hanya satu modalitas pencitraan , yang mungkin tidak seakurat penggabungan dua atau lebih dataset . "....more

3-D heart
printed using multiple imaging techniques

Echocardiography and CT combined to produce heart model

Date:

June 26, 2015

Source:

Spectrum Health

Summary:

Congenital heart experts have successfully integrated two common imaging
techniques to produce a three-dimensional anatomic model of a patient's heart.
This is the first time the integration of computed tomography (CT) and
three-dimensional transesophageal echocardiography (3DTEE) has been used in
this way. A proof-of-concept study also opens the way for these techniques to
be used in combination with a third tool -- magnetic resonance imaging (MRI).

..............................

Congenital heart experts from Spectrum Health Helen DeVos Children's
Hospital have successfully integrated two common imaging techniques to produce
a three-dimensional anatomic model of a patient's heart.

The 3D model printing of patients' hearts has become more common in recent
years as part of an emerging, experimental field devoted to enhanced
visualization of individual cardiac structures and characteristics. But this is
the first time the integration of computed tomography (CT) and
three-dimensional transesophageal echocardiography (3DTEE) has successfully
been used for printing a hybrid 3D model of a patient's heart. A
proof-of-concept study authored by the Spectrum Health experts also opens the
way for these techniques to be used in combination with a third tool --
magnetic resonance imaging (MRI).

"Hybrid 3D printing integrates the best aspects of two or more imaging
modalities, which can potentially enhance diagnosis, as well as interventional
and surgical planning," said Jordan Gosnell, Helen DeVos Children's
Hospital cardiac sonographer, and lead author of the study. "Previous
methods of 3D printing utilize only one imaging modality, which may not be as
accurate as merging two or more datasets."

The team used specialized software to register images from the two imaging
modalities to selectively integrate datasets to produce an accurate anatomic
model of the heart. The result creates more detailed and anatomically accurate
3D renderings and printed models, which may enable physicians to better
diagnose and treat heart disease.

Computed tomography (CT) and magnetic resonance imaging (MRI) are
established imaging tools for producing 3D printable models. Three-dimensional
transesophageal echocardiography (3DTEE) recently was reported by Joseph
Vettukattil, M.D., and his Helen DeVos Children's Hospital colleagues to be a
feasible imaging technique to generate 3D printing in congenital heart disease.
Vettukattil is co-director of the Helen DeVos Children's Hospital Congenital
Heart Center, division chief, pediatric cardiology, and senior author of the
study.

According to Vettukattil and his colleagues, each imaging tool has different
strengths, which can improve and enhance 3D printing:

CT
     enhances visualization of the outside anatomy of the heart.
MRI is
     superior to other imaging techniques for measuring the interior of the
     heart, including the right and left ventricles or main chambers of the
     heart, as well as the heart's muscular tissue.
3DTEE
     provides the best visualization of valve anatomy.


"This is a huge leap for individualized medicine in cardiology and
congenital heart disease," said Vettukattil. "The technology could be
beneficial to cardiologists and surgeons. The model will promote better
diagnostic capability and improved interventional and surgical planning, which
will help determine whether a condition can be treated via transcatheter route
or if it requires surgery."

Vettukattil is known internationally for his work and research with three-
and four-dimensional echocardiography. Most notably, Vettukattil developed the
advanced technique of multiplanar reformatting in echocardiography, a method
used to slice heart structures in infinite planes through the three dimensions
in a virtual environment similar to a cardiac pathologist dissecting the heart
to reveal underlying pathology. Commonly used with other diagnostic
technologies, such as CTs, Vettukattil pioneered its use in echocardiography to
evaluate complex heart defects.

Vettukattil is presenting the findings of the proof-of-concept study June
24-27 at the CSI 2015 -- Catheter Interventions in Congenital, Structural and
Valvular Heart Diseases Congress in Frankfurt, Germany to demonstrate the
feasibility of printing 3D cardiovascular models derived from multiple imaging
modalities.

The Helen DeVos Children's Hospital team worked with the Mimics® Innovation
Suite software from Materialise, a provider of 3D printing software and
services based in Belgium, which printed the model using its HeartPrint® Flex
technology. Gosnell worked on integration of the imaging modalities,
collaborating with Materialise's U.S. Headquarters in Plymouth, Mich., to
produce the final 3D rendering. Vettukattil devised the concept of integrating
two or more imaging modalities for 3D printing.

Further research is required to evaluate the efficacy of hybrid 3D models
in decision-making for transcatheter or surgical interventions.







Story Source:

The above post is reprinted from materials provided bySpectrum Health. Note: Materials may be edited
for content and length.

http://www.sciencedaily.com/releases/2015/06/150626095528.htm

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