• Journal of Korean Academy of Oral and Maxillofacial Radiology
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• v.20 no.1
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• pp.91-102
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• 1990

The aim of this study was to establish the diagnostic criteria of normal parotid glands in adults revealing the anatomical shape, its variations and the postitional relationships of the gland. Materials included 96 lateral and anterior-posterior sialograms of selected person from 23 to 28 years of age. Results were as follows: 1. The average length and lateral displacement of main duct was 48.43㎜ and l6.88㎜. The mean lumen diameter of that was 0.91㎜ in distal end and 1.40㎜ in hilar end in parotid glands. 2. The average angle of main duct to the inferior border of mandib was 34.32 degree. In configurations of main duct, modified curvilinear type was. most prevalent and followed by curvilinear, reverse sigmoid, sigmoid type. 3. The mean caliber of parotid gland was the longest in superior-inferior. 4. The interlobar ducts showed relatively well defined in all cases, its average number was 5.72. Arrangement of these ducts showed at random. Accessory lobe showed 87.5% in the all cases, its average number was 1.7. 5. There were no difference between the well and poorly defined acinar fillings in the glandular parenchyme. 6. There were no differences between right and left parotid glands in size and shape of main duct and parenchymal portion, but there were great variations in each individuals.

• Archives of Plastic Surgery
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• v.50 no.3
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• pp.254-263
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• 2023

Background The three-dimensional (3D) evaluation of skeletal stability after orthognathic surgery is a time-consuming and complex procedure. The complexity increases further when evaluating the surgery-first orthognathic approach (SFOA). Herein, we propose and validate a simple time-saving method of 3D analysis using a single software, demonstrating high accuracy and repeatability. Methods This retrospective cohort study included 12 patients with skeletal class 3 malocclusion who underwent bimaxillary surgery without any presurgical orthodontics. Computed tomography (CT)/cone-beam CT images of each patient were obtained at three different time points (preoperation [T0], immediately postoperation [T1], and 1 year after surgery [T2]) and reconstructed into 3D images. After automatic surface-based alignment of the three models based on the anterior cranial base, five easily located anatomical landmarks were defined to each model. A set of angular and linear measurements were automatically calculated and used to define the amount of movement (T1-T0) and the amount of relapse (T2-T1). To evaluate the reproducibility, two independent observers processed all the cases, One of them repeated the steps after 2 weeks to assess intraobserver variability. Intraclass correlation coefficients (ICCs) were calculated at a 95% confidence interval. Time required for evaluating each case was recorded. Results Both the intra- and interobserver variability showed high ICC values (more than 0.95) with low measurement variations (mean linear variations: 0.18 mm; mean angular variations: 0.25 degree). Time needed for the evaluation process ranged from 3 to 5 minutes. Conclusion This approach is time-saving, semiautomatic, and easy to learn and can be used to effectively evaluate stability after SFOA.

• Journal of Korean Neurosurgical Society
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• v.45 no.1
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• pp.32-34
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• 2009

The common carotid artery generally bifurcates into the internal and external carotid arteries at the level of C3-4. Injury to the common carotid artery during anterior cervical discectomy is a complication that is very much feared but encountered rarely. Knowing the anatomic variations of the common carotid artery and using an operating microscope during the anterior cervical approach for cases with low-lying bifurcation of the common carotid artery would prevent injuries to this artery. We present a 42-year-old female who has successfully undergone anterior cervical discectomy at the level of C5-6 and C6-7. She had a low-lying bifurcation of the common carotid artery.

• Journal of Chest Surgery
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• v.40 no.3 s.272
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• pp.236-239
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• 2007

During dissection of the saphenofemoral junction, anatomical variations in the tributaries of the long saphenous vein and external pudendal artery are frequently encountered, but the transpositions of the femoral artery and vein have very rarely been reported. On operation of the varicose vein, the surgical complications can be minimized when the possible deviations in the normal anatomy are taken into the consideration.

• Korean Journal of Cleft Lip And Palate
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• v.11 no.1
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• pp.31-36
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• 2008

The variations of cleft lip deformities imposed the difficulty to the surgical correction for them. Straight line technique for cleft lip surgery has been ignored quite long since other techniques were developed. Initially the straight line technique was introduced and widely accepted because it is simple and easy to perform during the period of no adequate anesthetics. But it was abandoned for its several shortcomings such as tighten lip, vermilion notching, anatomical distortion, and wound contractures. Recently, some groups advocated the usefulness of straight line technique which has a significant modification from its original form. Additionally the variable degree of cleft lip deformity allows simple straight line closure for those patients. Here a case of simple straight line technique was presented and discussed for its reliability and plausible results as well.

• Korean Institute of Interior Design Journal
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• no.18
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• pp.3-8
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• 1999

In accordance with the growing up to a fine-built national physique on national economic rapid growth, It should be made a partial amendment on the Installation planing of sanitary ware. If users who regard have no problem as using facilities in a unisex toilet, It'll be not only falling down the separation of toilet booth with substantial sanitary problems step by step as follow. 1. The urinal should be pay due regard to such a shape which intercepts stream before the point of dispersion and variations in splash effects according to angles between stream and contact urinal surface with deferent of age and health of users 2. Urinal should be fit for the perineum height of male and so It could be install differently according to the Anatomical Percentile of users.

• Journal of Yeungnam Medical Science
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• v.35 no.1
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• pp.94-98
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• 2018

The radial artery is generally the preferred access route in coronary angiography and coronary intervention. However, small size, spasm, and anatomical variations concerning the radial artery are major limitations of transradial coronary intervention (TRI). We describe a successful case involving a patient with coronary artery disease who underwent TRI via a well-developed radial recurrent artery branch from the radioulnar alpha loop using a sheathless guiding catheter.

• Anatomy and Cell Biology
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• v.51 no.4
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• pp.305-308
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• 2018

Anatomical variations of the sternocleidomastoid muscle (SCM) have been observed to occupy multiple origins and insertion points and have supernumerary heads, sometimes varying in thickness. During routine dissection, a SCM was observed to have six distinct insertions that interface with the course of the superior nuchal line, ending at the midline, bilaterally. This variation was also seen to receive innervation from the accessory nerve as well as the great auricular nerve. To our knowledge, this variant of supernumerary insertions and nerve innervations has not yet been reported. These variants may pose as problematic during surgical approaches to the upper neck and occiput, and should thus be appreciated by the clinician. Herein we discuss the case report, possible embryological origins, and the clinical significance of the observed variant SCM.

• The Journal of the Korean dental association
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• v.57 no.2
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• pp.74-80
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• 2019

Antrolith occurs within the maxillary sinuses and is circumscribed pathologic calcifications formed as a result of mineral salt deposition around an organic nucleus in the maxillary sinus. Radiographically, this lesion is a radiopaque mass showing variable sizes and shapes. Treatment by surgical removal is indicated only for large antrolith associated to clinical symptoms. CBCT should be required for treatment planning for implant-supported restorations in the maxilla because of the higher prevalence of anatomical variations and sinus disease. We report a 3 cases of antrolith which was found incidentally on panoramic images and CBCT, although there were no clinical symptoms.

• Journal of Chest Surgery
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• v.54 no.4
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• pp.325-329
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• 2021

Chylothorax is caused by lymphatic leakage, which can develop after thoracic surgery and is associated with cancer. Although prospective randomized trials have not been performed, radiological interventions have been performed in several cases with persistent chylothorax, adjunct to 2 weeks of conservative management. The success rate of such interventions is diverse due to anatomical variations, although the results are promising. However, in cases of treatment failure after cycles of interventions, a team approach may be necessary to determine whether surgical management is warranted.