scholarly journals Utility of 3D CT Rib Study in Presurgical Planning of Autologous Ear Graft for Pinna Reconstruction in Microtia

2021 ◽  
Author(s):  
Sneha S. Zanje ◽  
Nikhil V. Kamat ◽  
Kunal K. Taware ◽  
M L. Rokade ◽  
Ashesh C. Bhumkar
Keyword(s):  
Computed Tomography ◽  
Average Length ◽  
Costal Cartilage ◽  
Multislice Ct ◽  
Average Height ◽  
3D Ct ◽  
High Resolution Computed Tomography ◽  
Average Width ◽  
Presurgical Planning ◽  
The Right

Abstract Purpose The aim of this study was to demonstrate the utility of three-dimensional computed tomography (3D) CT rib study in presurgical planning to select the autologous rib cartilage graft for pinna reconstruction. Materials and Methods Total of 35 patients of microtia for autologous rib graft from April 2017 to February 2020 were evaluated in this study. All patients had a plain low-dose multislice CT chest. The length of costal cartilages of sixth to ninth ribs bilaterally and width and height of sixth and seventh rib costal cartilage synchondrosis were measured in 3D reconstructed true size coronal images with best possible length displayed. All patients had high-resolution computed tomography (HRCT) temporal studies done to evaluate for associated anomalies in external canal, middle ear cavities, and inner ear structures. Eleven patients had simultaneous HRCT temporal bone done after plain CT chest and rest who had done recent prior study were reviewed without repetition of study. Results There were 19 males and 16 females for 3D CT rib study. Average age of the participants was 16.5 years. The average width of synchondrosis of sixth and seventh rib was 15.4 mm on right side and 14.7 mm on left side, average height of synchondrosis was 28.5 mm on right side and 30.7 mm on left side. Average length of the eighth rib costal cartilage was 88.6 mm on the right side and 90.5 mm on the left side. Average length of the ninth rib was 63.2 mm on the right side and 58.2 mm on the left side. Costal cartilage calcifications were present in 9 patients. Conclusion Preoperative 3D CT rib study provides accurate measurements of rib stock for sculpting autologous ear graft.

scholarly journals An Anatomical Study of the Cochlea among Filipinos using High-Resolution Computed Tomography Scans

2011 ◽  
Vol 26 (1) ◽  
pp. 6-9 ◽  
Author(s):  
Adrian F. Fernando ◽  
Brian Joseph dG. De Jesus ◽  
Alejandro P. Opulencia ◽  
Gil M. Maglalang ◽  
Antoio H. Chua
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Average Length ◽  
Age Groups ◽  
Oval Window ◽  
University Hospital ◽  
High Resolution Computed Tomography ◽  
Basal Turn ◽  
The Mean ◽  
The Right

Objective: To describe the cochlear anatomy among Filipinos through high resolution computed tomography (HRCT) imaging.   Methods: Design: Retrospective Study Setting: Tertiary Private University Hospital Patients: Cochlear images retrospectively obtained from computed tomography (CT) scans of subjects who underwent cranial, facial, paranasal sinus and temporal bone computed tomography from October 2009 to July 2010 were reconstructed and analyzed.   Results: 388 cochlear images were obtained from the scans of 194 subjects (101 males and 93 females, aged 1 to 90 years old, mean = 52 years) and reconstructed for analysis. The mean coiled cochlear height measured 4.36 mm on the right (A.D.) and 4.34 mm on the left (A.S.). Measurement from the oval window to the distal end of the basal turn (equivalent to the horizontal dimension of the cochlea or the mean length of the basal turn) was 7.55 mm A.D. and 7.60 mm A.S. The vertical and horizontal dimensions of right and left cochleas were identical in all subjects (S.D. = 0.35). The right and left cochlear turns were identical in each subject, exhibiting 2 ½ turns in 92.3% of subjects and 2 ¾ turns in 7.7% of subjects.The cochlear dimensions were similar in all subjects, regardless of age. No cochlear ossification or malformation was noted on any CT image.   Conclusion: The 7.55 mm mean length of the cochlear basal turn among Filipinos in this study was 1.24 mm shorter than the average length of the basal turn of 8.81 mm reported elsewhere. Further studies of the cochlear dimensions in specific age groups and its correlation to audiometric status are recommended to determine other significant physiologic correlations.   Keywords: cochlea, cochlear turn, high-resolution computed tomography (HRCT), magnetic resonance imaging (MRI)

Age Related Histomorphometrical Studies on the Major Lymphoid Organs of Chicken

2021 ◽  
Author(s):  
N. Dahariya ◽  
S. Sathapathy ◽  
U.K. Mishra ◽  
R. Patra ◽  
S. Dehury ◽  
...  
Keyword(s):  
Average Length ◽  
Bursa Of Fabricius ◽  
Maximum Diameter ◽  
White Pulp ◽  
Average Height ◽  
Average Thickness ◽  
Average Width ◽  
Age Related ◽  
Group I ◽  
Average Maximum

Background: Hansli chicken is reared in Mayurbhanj and Keonjhar districts of Odisha. They play a vital role in the economic upliftment of poor, landless and marginalised people in the rural areas besides providing them with nutritious egg and meat for consumption.Methods: Hansli chicks and Vencobb broiler chicks were divided into three age groups viz. group I (up to 1 month), group II (1-3 months) and group III (3-6 months) with six birds in each age group. On 4th week, 12th week and 24th week, six birds from each breed were used for the study of histomorphometrical features of the thymus, spleen and bursa of Fabricius. Result: The average thickness of the capsule, cortex and medulla of thymus, average width of thymic lobule and average maximum diameter of Hassall’s corpuscles differed significantly (p≤0.05) between the birds at specific ages. Similarly, the average thickness of the splenic capsule, average width of white pulp, average external transverse and internal longitudinal diameters of trabecular artery, average external longitudinal, internal longitudinal, external transverse and internal transverse diameters of central artery, average longitudinal diameter of capillary, average longitudinal and transverse diameters of splenic nodule, average thickness of PALS and PELS differed significantly (p≤0.05) between the birds at specific ages. The average number of bursal follicles in larger and smaller plicae, average height and width of larger and smaller plicae, average length and width of bursal follicle, average height of columnar cell of pseudostratified FAE and IFE, average nuclear height of FAE and IFE columnar cells differed significantly (p≤0.05) between the birds at specific ages.

scholarly journals Radiographic Measurement of Cochlear in Sudanese Population using High Resolution Computed Tomography (HRCT)

2021 ◽  
Vol 29 (2) ◽  
Author(s):  
Lubna Bushara ◽  
Mohamed Yousef ◽  
Ikhlas Abdelaziz ◽  
Mogahid Zidan ◽  
Dalia Bilal ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Hearing Loss ◽  
High Resolution ◽  
Temporal Bone ◽  
Healthy Subjects ◽  
Cochlear Nerve ◽  
High Resolution Computed Tomography ◽  
Mean Width ◽  
The Mean ◽  
The Right

This study aimed to determine the measurements of the cochlea among healthy subjects and hearing deafness subjects using a High Resolution Computed Tomography (HRCT). A total of 230 temporal bone HRCT cases were retrospectively investigated in the period spanning from 2011 to 2015. Three 64-slice units were used to examine patients with clinical complaints of hearing loss conditions at three Radiology departments in Khartoum, Sudan. For the control group (A) healthy subjects, the mean width of the right and left cochlear were 5.61±0.40 mm and 5.56±0.58 mm, the height were 3.56±0.36 mm and 3.54±0.36 mm, the basal turn width were 1.87±0.19 mm and 1.88 ±0.18 mm, the width of the cochlear nerve canal were 2.02±1.23 and 1.93±0.20, cochlear nerve density was 279.41±159.02 and 306.84±336.9 HU respectively. However, for the experimental group (B), the mean width of the right and left cochlear width were 5.38±0.46 mm and 5.34±0.30 mm, the height were 3.53±0.25 mm and 3.49±0.28mm, the basal turn width were 1.76±0.13 mm, and 1.79±0.13 mm, the width of the cochlear nerve canal were 1.75±0.18mm and 1.73±0.18mm, and cochlear nerve density were 232.84±316.82 and 196.58±230.05 HU, respectively. The study found there was a significant difference in cochlea’s measurement between the two groups with a p-value < 0.05. This study had established baseline measurements for the cochlear for the healthy Sudanese population. Furthermore, it found that HRCT of the temporal bone was the best for investigation of the cochlear and could provide a guide for the clinicians to manage congenital hearing loss.

scholarly journals The Anatomical Position and Size of Greater Palatine Foramen and Canal in an Iranian Sample Using Cone Beam Computed Tomography

2021 ◽  
Author(s):  
Solmaz Valizadeh ◽  
Seyedeh Mahshid Ahmadi ◽  
Mitra Ghazizadeh Ahsaie ◽  
Zahra Vasegh ◽  
Navid Jamalzadeh
Keyword(s):  
Computed Tomography ◽  
Average Length ◽  
Third Molar ◽  
Cone Beam ◽  
P Value ◽  
Second Molar ◽  
Anatomical Position ◽  
The Third ◽  
Greater Palatine Foramen ◽  
The Right

Abstract IntroductionDetection of exact location of greater palatine foramen and its anatomical variations are vital prior to posterior maxillary surgeries and gingival grafts. The aim of this study is to determine the anatomical position and size of the greater palatine canal (GPC) and foramen (GPF) using cone beam computed tomography (CBCT) scans.Materials and methodsIn this descriptive-analytic study, CBCT images of 148 patients were assessed. To determine the anatomical foramen position, the posterior maxilla area was divided into five regions on the axial view (A: from the mesial surface of the second molar to the center of the second molar, B: from the center of the second molar to its distal, C: from the mesial surface of the third molar to the center of the third molar, D: from the center of the third molar to the distal of the third molar, E: distal to the third molar.). The length of the canal was investigated on both coronal and sagittal views. Independent and paired T-test were used to analyze the data.ResultsAmong 80 females -68 males, the anatomical position of the GPF was mainly located in region E on the left (55%) and the right (50%), and then, respectively, in region D and region C. The mean diameter of GPF was 4/48 mm on the left and 4/63 mm on the right side (P-value = 0/01). The average length of the canal on the coronal view was 29.46 mm on the left side and 29.75 mm on the right (P-Value = 0/005). The average length of the canal on the sagittal view was 29.62 mm on the left and 30.02 mm on the right (P-value = 0/001).ConclusionThe anatomical position of the GPF was primarily located distal to the third maxillary molar. CBCT is a valuable diagnostic tool for evaluation of vital anatomic landmarks in the maxillofacial region prior to surgeries and interventions.

scholarly journals A study on occurrence of third trochanter in the femora in northern Tamil Nadu region

2015 ◽  
Vol 04 (04) ◽  
pp. 186-189
Author(s):  
N Muthukumaravel ◽  
K. Y Manjunath
Keyword(s):  
Tamil Nadu ◽  
Average Length ◽  
Gluteus Maximus ◽  
Functional Difference ◽  
Human Beings ◽  
Average Width ◽  
Medical College ◽  
The Third ◽  
Gluteus Maximus Muscle ◽  
The Right

Abstract Background and aims: The third trochanter is defined as the osseous tubercule in the superior part of the gluteal tuberosity. The occurrence of third trochanter might have been due to the consequence of the relative strengthening of gluteus maximus muscle in human beings. The present study was undertaken on the femora of northern Tamil Nadu region with the aim to determine the frequency of third trochanter of femur in this region and to compare it with occurrence in other series. Material and methods: The study was carried out on a collection of 153 dried adult femora of unknown age and sex available at the departments of Anatomy of Annapoorana Medical College and Vinayaka Mission's Homeopathy Medical College, Salem, Tamil Nadu, India. Results: Out of total 153 femora studied, the presence of third trochanter was noticed in 21 femora (13.72%). Out of these 15.71% were femora of the right side and 12.04% were of the left side. The average length and breadth of the third trochanters were 19.80±5.22 mm and 7.63±1.75 mm respectively Conclusion: The occurrence of the third trochanter was considerably higher among right femora than the femora of the left side. The average length of the third trochanters was found to be more on the right side and average width was more on the left side. This may be due to functional difference between the right and left gluteus maximii muscles.

scholarly journals A study on maxillary sinus dimensions by computed tomography in population of Tamil Nadu

2016 ◽  
Vol 05 (02) ◽  
pp. 091-096
Author(s):  
N Muthukumaravel ◽  
K.Y Manjunath
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Tamil Nadu ◽  
Maximum Width ◽  
Average Width ◽  
Computed Tomographic ◽  
Significant Difference ◽  
The Difference ◽  
The Right ◽  
Maxillary Sinuses

Abstract Background and aims: Maxillary sinuses are the largest of the paranasal sinuses known for variability in their dimensions. The maxillary sinus dimensions can be better ascertained in living by using computed tomography instead of plain radiography. This study was planned for highlighting the variations in the dimensions of the maxillary sinuses of population of Tamil Nadu region. The aims of the present study were to estimate dimensions of the maxillary sinuses on computed tomographic (CT) scan of the head of patients from Tamil Nadu and to compare the data gender wise and sidewise. Material and methods: Maximum width, height and depth of maxillary sinus of both sides were measured in CT - head images of 100 males and 100 females of 20-50 years of age in Tamil Nadu. Comparison of data between genders and sides by applying unpaired student "t" test was done. Results : The mean depth, height and width of both right and left maxillary sinuses were comparatively less in females than the males and the difference was found to be statistically significant ( P <.0001). On comparison between the sides of maxillary sinuses, the depth and the height of maxillary sinus did not show any significant difference in the measurements (p >.05), whereas the width of the left side (23.96 mm) was higher than that of the right side (23.69) and the difference was found to be statistically significant (P<.05). The combined average maxillary sinus dimensions (in mm) for both genders in the study population of Tamil Nadu are as follows: Right side depth: 33.71 ± 1.00; Left side depth : 33.65 ± 1.22; Right side height: 34.66 ± 2.71; Left side height: 34.74± 2.48; Right side width: 23.69 ± 0.78 and Left side width: 23.96 ± 0.86. Conclusion: The dimensions of maxillary sinuses in males were found to be larger than those of females and this difference was statistically significant. The average width of the maxillary sinuses on the left side is significantly more than that of right sided sinuses. Computed tomography measurements of maxillary sinuses may be useful in gender determination.

scholarly journals Pulmonary infections caused by non-tuberculous mycobacteria−single centre experience

2013 ◽  
Vol 66 (suppl. 1) ◽  
pp. 88-92
Author(s):  
Tatjana Adzic-Vukicevic ◽  
Ana Blanka ◽  
Marija Laban-Lazovic ◽  
Vesna Skodric-Trifunovic ◽  
Dajana Trifunovic ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Clinical Importance ◽  
Chronic Obstructive ◽  
High Resolution Computed Tomography ◽  
Culture Methods ◽  
Radiographic Findings ◽  
Co Morbidity ◽  
The One ◽  
The Right

Introduction. Non-tuberculosis mycobacteria are environmental organisms found in soil and water worldwide, and an infection caused by non-tuberculosis mycobacteria is less frequently found than the one associated with Mycobacterium tuberculosis. This study was designed to evaluate data relating to non-tuberculosis mycobacteria in patients with clinical importance. Material and Methods. Of 12 patients (pts) admitted to the Department of Pulmonology, Clinical Centre of Serbia in Belgrade during 2010- 2011, seven (58.33%) were men and five (41.67%) were women. Bacteriological and radiographic findings, co?morbidity, treatment management and outcome were evaluated from medical records. Results. Using GenoType? Mycobacterium CM/AS (Hain Lifescience) assays for identification of isolated cultures of NTM) M.xenopi was found in six (50%) pts, M.avium complex in two (16.67%) pts, M.kansasii and M.xenopi in one (8.33%), M. gordone, M.abscessus and M.peregrinum in one (8.33%) patient each. Cavitary lesions were most frequently determined on high resolution computed tomography in five (41.67%) pts, followed with consolidation in two (16.67%) pts, cavitation with fibronodular lesions and bronchiectasis in one (8.33%) patient each. Comorbidities were noticed in nine (75%) pts, with chronic obstructive pulmonary diseases most frequently found in six (50%) pts. According to American Thoracic Society definition and criteria, treatment was administered in nine (75%) pts. Conclusion. In order to find the right treatment, it is important to identify non-tuberculosis mycobacteria lung infection by culture methods, at least two positive, accompanied with high resolution computed tomography changes.

scholarly journals Rapidly Progressive Pulmonary Apical Fibrosis and Parenchymal Destruction in a Patient with Ankylosing Spondylitis

2020 ◽  
Vol 2020 ◽  
pp. 1-4
Author(s):  
Hasan Ulusoy ◽  
Nazmiye Tibel Tuna ◽  
Aslı Tanrivermis Sayit
Keyword(s):  
Computed Tomography ◽  
Ankylosing Spondylitis ◽  
Rare Complication ◽  
Granulomatous Inflammation ◽  
Pulmonary Involvement ◽  
High Resolution Computed Tomography ◽  
Thoracic Computed Tomography ◽  
Breath Sounds ◽  
Chest X Ray ◽  
The Right

Pulmonary apical fibrosis is a rare complication of ankylosing spondylitis (AS). The essential characteristics of this lesion are its very slow progression and frequently asymptomatic nature. Herein, we are presenting a patient with AS who rapidly developed pulmonary apical fibrosis in a 3-year period despite decreased musculoskeletal pains. The 60-year-old male applied with complaints of progressively increasing cough in the recent two years, dyspnea, and fatigue. He had no chronic disease except AS. He had no continuous medication except nonsteroid anti-inflammatory drugs for 2-3 days monthly since his musculoskeletal pains decreased in the recent years. His physical examination revealed reduced breath sounds in the upper zones of the right lung. Chest X-ray revealed increased diffuse opacity in the upper zones of the right lung. Thoracic high-resolution computed tomography showed a consolidation accompanied with traction bronchiectases compatible with chronic fibrosis in the upper lobe of the right lung. However, thoracic computed tomography of the patient performed 3 years ago did not reveal pulmonary apical fibrosis and parenchymal destruction. Biopsy revealed no finding of malignancy, granulomatous inflammation, or vasculitis. The results of cultures were negative. So, the patient was diagnosed as pulmonary involvement of AS, which developed in a 3-year period. This case has shown that extra-articular complications may continue to develop in patients with AS even if their musculoskeletal complaints have subsided. So, patients with AS should be followed up regularly with systemic examinations.

scholarly journals Significance of Rouviere’s Sulcus in Hepatobiliary Surgery: A Cadaveric study

2021 ◽  
Vol 9 (3.2) ◽  
pp. 8074-8078
Author(s):  
Pallavi Bajpayee ◽  
◽  
Neelesh Kanaskar ◽  
P Vatsalaswamy ◽  
PR Manivikar ◽  
...  
Keyword(s):  
Average Length ◽  
Morphological Data ◽  
Hepatobiliary Surgery ◽  
Average Width ◽  
Medical College ◽  
Hepatic Pedicle ◽  
Hepatic Vessels ◽  
Length Width ◽  
Inferior Border ◽  
The Right

Background: Rouviere’s sulcus (RS) was first identified in 1924 by Henri Rouviere. It lies oblique to the anterior and inferior border of the liver and holds the right portal pedicle. Material and Methods: The study was conducted in the Department of Anatomy of a Medical College in Maharashtra, India, on 45 cadaveric livers. The morphological observations made were: presence/ absence RS; direction of RS (oblique/ horizontal/ vertical); sulcus type ( deep/ slit/ scar); length, width and depth; presence of right hepatic pedicle; distance of the hepatic vessels from edge of the sulcus . Results: 40 livers showed the presence of Rouviere’s Sulcus. It was absent in five specimens. Direction was horizontal in 40%, oblique in 57.5% and vertical in 2.5% .26 livers showed a deep type of sulcus, 12 showed the slit type and 2 showed scar type .29 livers showed the right hepatic pedicle entering the RS. Average length, depth, of the RS was 2.35 cm and1.07 cm respectively. The average width was 0.32cm at medial end, 0.22cm at midpoint and 0.1cm at lateral end. Present study has added the details of depth of vessels from the edge of RS, which was not recorded in earlier studies. Depth of vessels from the edge of the sulcus was average 5mm (0.5cm) for the right branch of the hepatic artery and was 12mm (1.2cm) for the right branch of portal vein. Conclusion: Rouviere’s sulcus is a reference landmark for surgeons during laparoscopic surgeries on gall bladder and during hepatic resection to avoid injuries. This study wishes to provide detailed morphological data of the Rouviere’s Sulcus to hepatobiliary surgeons including depth of hepatic vessels in the RS as an added parameter to aid them in their surgical endeavor. KEY WORDS: Rouviere’s sulcus, Anatomical Landmark, Morphology, Depth, Hepatobiliary Surgery.

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