Computer aided three-dimensional analysis of nostril forms

Application in normal and operated cleft lip patients

Tomohiro Yamada, Yoshihide Mori, Katsuhiro Minami, Katsuaki Mishima, Toshio Sugahara, Masayoshi Sakuda

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The appearance of the nostril in cleft lip patients is very important in the subjective assessment of naso-labial forms and patient satisfaction. To improve the outcome of plastic surgery, a computer aided diagnostic system was developed. Facial forms were measured with a three-dimensional optical scanner (Ogis Range Finder RFX-IV) XYZ coordinates (256 x 240) and RGB (red, green, blue) image (512 x 480) data sets were then obtained with the apparatus. The nostril area was determined by discriminant analysis of the RGB data, and the landmarks of the nostril were extracted under geometric conditions. To assess the reliability of this technique with head inclination, five volunteers were measured in seven postures. Landmark stability was within approximately 1 mm when the Frankfort plane was 45-60°. Subsequently, this system was applied to two cleft lip patients who had undergone a secondary nasal correction. For control data, 37 healthy adults (22 males and 15 females) were measured in the same manner. Nasal asymmetry in the unilateral case and wide and flat nostrils in the bilateral case were greatly improved after surgery. Conversely, the volume of the nasal tip decreased. This system was a great help in the diagnosis of nostril abnormalities. (C) 1999 European Association for Cranio-Maxillofacial Surgery.

Original languageEnglish
Pages (from-to)345-353
Number of pages9
JournalJournal of Cranio-Maxillofacial Surgery
Volume27
Issue number6
DOIs
Publication statusPublished - Jan 1 1999
Externally publishedYes

Fingerprint

Cleft Lip
Nose
Oral Surgery
Discriminant Analysis
Plastic Surgery
Lip
Posture
Patient Satisfaction
Volunteers
Head

All Science Journal Classification (ASJC) codes

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology

Cite this

Computer aided three-dimensional analysis of nostril forms : Application in normal and operated cleft lip patients. / Yamada, Tomohiro; Mori, Yoshihide; Minami, Katsuhiro; Mishima, Katsuaki; Sugahara, Toshio; Sakuda, Masayoshi.

In: Journal of Cranio-Maxillofacial Surgery, Vol. 27, No. 6, 01.01.1999, p. 345-353.

Research output: Contribution to journalArticle

Yamada, Tomohiro ; Mori, Yoshihide ; Minami, Katsuhiro ; Mishima, Katsuaki ; Sugahara, Toshio ; Sakuda, Masayoshi. / Computer aided three-dimensional analysis of nostril forms : Application in normal and operated cleft lip patients. In: Journal of Cranio-Maxillofacial Surgery. 1999 ; Vol. 27, No. 6. pp. 345-353.
@article{02288c9d4a7a4e13b84e4235ccdb04a6,
title = "Computer aided three-dimensional analysis of nostril forms: Application in normal and operated cleft lip patients",
abstract = "The appearance of the nostril in cleft lip patients is very important in the subjective assessment of naso-labial forms and patient satisfaction. To improve the outcome of plastic surgery, a computer aided diagnostic system was developed. Facial forms were measured with a three-dimensional optical scanner (Ogis Range Finder RFX-IV) XYZ coordinates (256 x 240) and RGB (red, green, blue) image (512 x 480) data sets were then obtained with the apparatus. The nostril area was determined by discriminant analysis of the RGB data, and the landmarks of the nostril were extracted under geometric conditions. To assess the reliability of this technique with head inclination, five volunteers were measured in seven postures. Landmark stability was within approximately 1 mm when the Frankfort plane was 45-60°. Subsequently, this system was applied to two cleft lip patients who had undergone a secondary nasal correction. For control data, 37 healthy adults (22 males and 15 females) were measured in the same manner. Nasal asymmetry in the unilateral case and wide and flat nostrils in the bilateral case were greatly improved after surgery. Conversely, the volume of the nasal tip decreased. This system was a great help in the diagnosis of nostril abnormalities. (C) 1999 European Association for Cranio-Maxillofacial Surgery.",
author = "Tomohiro Yamada and Yoshihide Mori and Katsuhiro Minami and Katsuaki Mishima and Toshio Sugahara and Masayoshi Sakuda",
year = "1999",
month = "1",
day = "1",
doi = "10.1054/jcms.1999.0097",
language = "English",
volume = "27",
pages = "345--353",
journal = "Journal of Cranio-Maxillo-Facial Surgery",
issn = "1010-5182",
publisher = "Churchill Livingstone",
number = "6",

}

TY - JOUR

T1 - Computer aided three-dimensional analysis of nostril forms

T2 - Application in normal and operated cleft lip patients

AU - Yamada, Tomohiro

AU - Mori, Yoshihide

AU - Minami, Katsuhiro

AU - Mishima, Katsuaki

AU - Sugahara, Toshio

AU - Sakuda, Masayoshi

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The appearance of the nostril in cleft lip patients is very important in the subjective assessment of naso-labial forms and patient satisfaction. To improve the outcome of plastic surgery, a computer aided diagnostic system was developed. Facial forms were measured with a three-dimensional optical scanner (Ogis Range Finder RFX-IV) XYZ coordinates (256 x 240) and RGB (red, green, blue) image (512 x 480) data sets were then obtained with the apparatus. The nostril area was determined by discriminant analysis of the RGB data, and the landmarks of the nostril were extracted under geometric conditions. To assess the reliability of this technique with head inclination, five volunteers were measured in seven postures. Landmark stability was within approximately 1 mm when the Frankfort plane was 45-60°. Subsequently, this system was applied to two cleft lip patients who had undergone a secondary nasal correction. For control data, 37 healthy adults (22 males and 15 females) were measured in the same manner. Nasal asymmetry in the unilateral case and wide and flat nostrils in the bilateral case were greatly improved after surgery. Conversely, the volume of the nasal tip decreased. This system was a great help in the diagnosis of nostril abnormalities. (C) 1999 European Association for Cranio-Maxillofacial Surgery.

AB - The appearance of the nostril in cleft lip patients is very important in the subjective assessment of naso-labial forms and patient satisfaction. To improve the outcome of plastic surgery, a computer aided diagnostic system was developed. Facial forms were measured with a three-dimensional optical scanner (Ogis Range Finder RFX-IV) XYZ coordinates (256 x 240) and RGB (red, green, blue) image (512 x 480) data sets were then obtained with the apparatus. The nostril area was determined by discriminant analysis of the RGB data, and the landmarks of the nostril were extracted under geometric conditions. To assess the reliability of this technique with head inclination, five volunteers were measured in seven postures. Landmark stability was within approximately 1 mm when the Frankfort plane was 45-60°. Subsequently, this system was applied to two cleft lip patients who had undergone a secondary nasal correction. For control data, 37 healthy adults (22 males and 15 females) were measured in the same manner. Nasal asymmetry in the unilateral case and wide and flat nostrils in the bilateral case were greatly improved after surgery. Conversely, the volume of the nasal tip decreased. This system was a great help in the diagnosis of nostril abnormalities. (C) 1999 European Association for Cranio-Maxillofacial Surgery.

UR - http://www.scopus.com/inward/record.url?scp=0033506329&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033506329&partnerID=8YFLogxK

U2 - 10.1054/jcms.1999.0097

DO - 10.1054/jcms.1999.0097

M3 - Article

VL - 27

SP - 345

EP - 353

JO - Journal of Cranio-Maxillo-Facial Surgery

JF - Journal of Cranio-Maxillo-Facial Surgery

SN - 1010-5182

IS - 6

ER -