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Three-Dimensional Image and Virtual Dissection Program of the Lung Made of Korean Cadaver

Other Title
한국 사람의 시체로 만든 허파의 3차원 영상과 가상해부 풀그림
김, 이석; 정, 민석
Taehan Haebu Hakhoe chi, 32(6):859-868, 1999
Journal Title
Taehan Haebu Hakhoe chi; The Korean journal of anatomy; 대한해부학회지
Knowledge of three-dimensional(3D) structure of the lung is very important for

diagnosis and treatment of lung diseases. Two-dimensional(2D)tools(e.g. anatomy books)

or traditional 3D tools(e.g. plastic models) are not sufficient for understanding 3D

structure of the lung. The lung of a cadaver may not always be available for dissection,

when it is needed. To overcome this problem, virtual dissection programs of the lung

have been made. However, most programs include either 2D images that do not permit

free sectioning and free rotating, or radiographs that do not reveal true color and have

limited resolution. Moreover, it is necessary to make a virtual dissection program of

each race and ethnic group. Thus, we attempted to make 3D image and virtual

dissection program of the lung using a Korean cadaver in order to help medical students

and doctors better understand 3D structure of the bronchi and pulmonary vessels.

Both right and left lungs extracted from a 60-year old Korean male cadaver were

embedded with gelatin solution, and were serially-sectioned with 1.5㎚-thickness using a

meat slicer. Sectioned specimens from each lung were inputted into the computer using

a scanner(300×400 resolution, true color). 2D images of the lungs were aligned on the

alignment program which was composed using IDL language. The lung components,

such as the bronchi and pulmonary vessels were manually segmented in 2D images on

the CorelDRAW program. 3D images of the lung were reconstructed through the

volume-based rendering of 2D images. With 3D images as the main features, the virtual

dissection program of the lung was composed using IDL language. Various virtual

dissection functions, such as sectioning 3D image of the lung at free angles to show its

plane, identifying the bronchi and pulmonary vessels represented in the sectioned plane,

and rotating 3D image of the whole lung or 3D image of the selected bronchi and

pulmonary vessels at free angles, were established.

This virtual dissection program of the lung was helpful in better understanding 3D

location and shape of the bronchi and pulmonary vessels; it is expected to be used

through Internet or CD-title as an educational tool for medical students and doctors.
KoreanCadaverBronchusPulmonary cesselThree-dimensionalVirtual dissectionLung
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Journal Papers > School of Medicine / Graduate School of Medicine > Anatomy
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