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Article
Diagnostic accuracy of panoramic maxillary sinus projection in patients with maxillary bone fractures according to CT scan findings

Author: Ali S. Al-Haddad
Journal: Karbala Journal of Medicine مجلة كربلاء الطبية ISSN: 19905483 Year: 2016 Volume: 9 Issue: 2 Pages: 2479-2482
Publisher: Kerbala University جامعة كربلاء

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Abstract

background: Diagnostic imaging has been of recent and unique importance in substantiating the clinically suspected existence of the midface fracture and it is essential to be aware of the various procedures available to help initially in establishing an accurate diagnosis. The aim of the study is to evaluate the diagnostic accuracy of panoramic maxillary sinus projection according to computed tomographical findings in patients with maxillary bone fractures to be used as an emergency radiographic diagnostic aid.Subjects, material and methods: Thirty patients with a midfacial trauma and twenty patients suspected to having midfacial fractures. All subjects were examined radiographically using panoramic maxillary sinus imaging system to evaluate the maxillary bone and recorded as either “positive” or “negative” according to the positive computed tomographical maxillary bone fracture findings.Results: Panoramic maxillary sinus projection was 87.5% sensitive in detecting maxillary bone fractures line with 96% accuracy and it can establish the diagnosis of any maxillary bone fracture with 100% confidence in any clinical setting.Conclusion: If panoramic maxillary sinus imaging is performed as the first imaging modality in case of suspected midfacial fractures by an experienced investigator, the visualization of fracture line can avoid conventional imaging, so that only an indicated computed tomography scan can be added.


Article
Assessment of mandibular third molar position by using computed tomography and reconstructed lateral radiograph

Authors: Istabraq M. Mohamed --- Nidhal H. Ghaib نضال حسين غايب
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 2 Pages: 104-107
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Consideration of mandibular third molar is important from orthodontic perspective due to severalfactors such as, lower anterior arch crowding, relapse in lower anterior region, interference with uprighting ofmandibular first and second molars during anchorage preparation and molar distalization. The aims of this studywere to assess of gender differences in the mandibular third molar position and compare and evaluate whetherthere is any differences in the results provided by CT scan and lateral reconstructed radiograph.Materials and Methods: The sample of present study consisted of 39 patients (18 males and 21 females) with agerange 11-15 years. CT images for patients who were attending at Al Suwayra General Hospital/the ComputerizedTomography department. Computed tomographic images were obtained for The distance from Xi point to distalsurface of permanent mandibular second molar was measured in both three dimensional volumetric images andtwo dimensional CT derived lateral image. The statistical analyses included: means, standard deviations. Paired t-testwas used to compare between the two methods and independent t-test was used in verifying the gendersdifference.Results: The results showed that there was high significant method difference between 3D CT and 2D image andgender differences was observed in values of linear measurements of present study, as males showed higher meanvalues than females.Conclusion: There is high accuracy of measurement on CT images, so CT scan is advisable during the diagnosis andtreatment plan of orthodontic cases


Article
Prevalence and localization of the posterior superior alveolar artery in relation to the floor of the maxillary sinus and alveolar crest among sample of Iraqis using computed tomography

Authors: Abdullah Ahmed Ibrahim عبدالله احمد ابراهيم --- Lamia H. Al Nakib لمياء حامد النقيب
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 3 Pages: 54-58
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Posterior superior alveolar artery (PSAA) is branch of the maxillary artery. It usually supplies the lateral wall of the sinus and overlying membrane. Evaluation and awareness of the anatomy of maxillary sinus before surgery is crucial to avoid surgical complications. The aim of this study is to examine the prevalence, location of the (PSAA) in relation to the floor of the maxillary sinus and alveolar crest using computerized tomography (CT) scans.Materials and Methods: This study included 180 Iraqi subjects (99 males and 81 females) with age more than 16 years old. CT scans for (right and left) Maxillary sinuses were done for each patient. The information obtained was assessed in a coronal multi planar reconstructions images (MPRs) in order to obtain the following parameters: prevalence rate of PSAA, distance from the lower border of the artery to the: alveolar crest, the floor of the sinus and the medial sinus wall.Results: The prevalence of PSAA on CT images was 73.61% among total sample. Distance from the lower border of the artery to the alveolar crest was (18.42± 4.07) mm, and to the sinus floor was (8.99 ±3.86) mm and to the medial sinus wall was (12.68 ± 2.81) mm.Conclusions: CT scan is valuable tool in evaluation and localization of the PSAA before maxillary sinus surgery


Article
A Comparative Study of Diagnostic Nasal Endoscopy and Computed Tomography in Chronic Rhinosinusitis

Author: Rawand Kamaran Hussein, Said Mustafa Said Jaf1
Journal: Medical Journal of Babylon مجلة بابل الطبية ISSN: 1812156X 23126760 Year: 2019 Volume: 16 Issue: 3 Pages: 199-202
Publisher: Babylon University جامعة بابل

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Abstract

Background: Chronic rhinosinusitis (CRS) is a common condition in medical practice. It is defined as inflammation of the mucosa of noseand paranasal sinuses, the fluids within these cavities, and/or the underlying bone that has been present with or without treatment for at least12 weeks’ duration. Objective: This study aimed to determine the correlation of nasal endoscopy examination and computed tomography (CT)in the early diagnosis of CRS. Materials and Methods: The study was carried out in outpatient Department of Otorhinolaryngology, in RizgaryTeaching Hospital in Erbil. A total of 60 patients with clinical evidence of sinonasal diseases were evaluated with nasal endoscopy and computedtomographic evaluation. Patients with previous variation of paranasal sinus anatomy due to facial trauma and former sinus surgery wererejected. Patients with history of having malignant neoplasms or congenital malformations were also excluded from the study. Results: Sixtypatients with chronic rhinosinusitis participated in the study. Their mean age + standard deviation was 38.18 + 10.19 years, ranging from 20to 63 years. The median was 37.5 years. The largest proportion (41.7%) of the sample aged 30–39 years old, and only 16.7% aged ≥50 years.The main symptoms of the patients were nasal obstruction (80%), ear pressure (80%), and nasal discharge (78.3%). No significant differencewas detected between the two tests regarding their findings. Conclusion: Nasal endoscopy have sensitivity and specificity almost as good asCT scanning, and being an outpatient procedure, it may reduce unnecessary diagnostic scanning procedures.


Article
The Value of Spiral Computed Tomography in Diagnosis of Renal Mass Lesions

Authors: Sahar Basim Ahmed --- Saad Hatem Al-Samarrai
Journal: Iraqi Academic Scientific Journal المجلة العراقية للاختصاصات الطبية ISSN: 16088360 Year: 2009 Volume: 8 Issue: 3 Pages: 301-308
Publisher: The Iraqi Borad for Medical Specialization المجلس العراقي للاختصاصات الطبية

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Abstract

ABSTRACT:BACKGROUND:This prospective study was done in spiral CT units at Al-Yarmook teaching hospital & Al-Kadhmia teaching hospital , in the period from October 2005 to October 2007, 40 Patients with renal masses were examinedOBJECTIVE:To evaluate the role of spiral CT in the diagnosis of renal mass lesion. Agreement between spiral CT with histopathology in diagnosis of renal masses by spiral computed tomography.PATIENTS & METHODS :Forty patients with renal masses were referred to spiral CT examination , they were referred from urology department . The final diagnosis of most cases was confirmed by surgery and histopathology in (36) cases. The patients ages ranged from (3-79) years. Data collection regarding age, sex, occupation, history of cigarette smoking, history of renal stones, clinical presentation, past history, family history of renal disease, history of trauma and previous history of hospital admission were made.RESULTS:The most common age group affected was (50-59) most frequently Presenting symptom was haematuria .The sensitivity 76.9%, specifity 97%, PPV 78%, NPV 96.4% and accuracy of CT in diagnosis of renal masses was 96%.CONCLUSION:This study shows that CT is highly specific and accurate for diagnosis of renal masses and especially the renal cell carcinoma,which is the most common tumor detected in this study


Article
Computed tomographic measurement of maxillary sinus volume and dimension in correlation to the age and gender (comparative study among individuals with dentate and edentulous maxilla)

Authors: Hussein Haleem Jasim حسين حليم جاسم --- Jamal Ali Al-Taei جمال علي الطائي
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 1 Pages: 87-93
Publisher: Baghdad University جامعة بغداد

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Abstract

Background : Although development and progress in various diagnostic methods, but still identification of remnantsof skeletal and decomposing parts of human is one of the most difficult skills in forensic medicine . Gender and ageestimation is also considering an important problem in the identification of unknown skull.The aims of study: To estimate volume and dimension of maxillary sinus in individuals with dentate and edentulousmaxillae using CT scan, and to correlate the maxillary sinus volume in relation to gender and age.Materials and Methods : This study included 120 patients ranged from (40-69 years), divided into two groups, dentategroup with fully dentate maxilla and edentulous group with complete edentulous maxilla, and each groupcomposed of 60 patients (30 males and 30 females) who admitted to spiral CT scan unit in X-ray Institute inBaghdad to have CT of the brain and paranasal sinuses from October 2011 to June 2012, who had complaints ofheadaches or with suspection of sinusitis but without pathological findings in maxillary sinuses. The maxillary sinusvolumes and dimensions (width, depth, and height) were measured with the help of the computer software in SpiralCT scan system.Results : The statistical analyses of maxillary sinus measurements for dentate and edentulous groups showed that thevolume and dimensions of maxillary sinuses in both groups were larger in males than females and they tend todecrease with the older age, in addition it is found that there was no significant differences in measurements ofmaxillary sinuses between dentate and edentulous groups, but the exception was in height measurements whichwere significantly higher in edentulous than dentate group for both genders.Conclusion: It's found that the volumes and dimensions of the maxillary sinuses were larger in males than in females,in addition to that they tend to be less with the older age, so the Computed Tomography measurements of maxillarysinuses may be useful to support gender and age determination in forensic medicine


Article
The multi-detector computed tomographical analysis of bone density in impacted maxillary canines

Authors: Nidhal H. Ghaib نضال حسين غايب --- Nadia B. Al-Ansari
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 3 Pages: 165-167
Publisher: Baghdad University جامعة بغداد

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Background: Maxillary canines are important aesthetically and functionally, but impacted canines are more difficultand time consuming to treat, the aim of this study is to investigate with multi-detector computed tomography thecorrelation between the bone density and the upper canine impaction.Material and method: A sample of Unilaterally impacted maxillary canines from 24 patients (19 female, 5 male) whowere referred to accurately localize the impacted canines at al- Karkh general hospital were evaluated by avolumetric 3-d images by the multi-detector computed tomography to accurately measure the bone density of themaxillary cortical palate of the maxillary impacted canine side and compare it with the other side of the normallyerupted canine.Results: The statistical descriptive analysis showed that the ratio of the maxillary canine impaction was higher infemales than in males, also the it revealed that the mean bone density of the cortical bone was greater in themaxillary impacted canine side (affected side) than in the control side (the side of the normally erupted canine), theWilcoxon signed ranks test showed a significant difference in the mean bone density between the affected side andthe control side.Conclusions: The increased bone density of the maxillary cortical plate could be an obstructive factor that causemaxillary canine impaction


Article
Comparison of Three Dimensional Dental Software Computed Tomography Findings with Real Time Surgical Approaches for Impacted Teeth

Authors: Nazhat M. Abdlkareem --- Shefaa H. AL-Nuome --- Haider A. Rassul --- Taha Y.Hamad
Journal: Tikrit Journal for Dental Sciences مجلة تكريت لعلوم طب الاسنان ISSN: 20731213 Year: 2014 Volume: 3 Issue: 1 Pages: 113-122
Publisher: Tikrit University جامعة تكريت

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Abstract

An exact localization of impacted teeth is often difficult to assume by using two dimensional conventional radiological techniques like OPG or dental films. In contrast to these two dimensional imaging method, the Dental slice Software Computed Tomography offers a three-dimensional imaging of maxilla-facial region, providing the opportunity to study objectives in all standard plans with three-dimension, reconstructed and multisection views. The aim of this study is to prove the effectiveness of the Dental slice Software Computed Tomography in evaluating the position of impacted teeth as a presurgical diagnostic aid. 25 patients with total of 40 impacted teeth were classified and evaluated by three sets .The first set of radiographs consist of traditional two dimensional images(per apical , occlusal films and OPG).The second set comprised three-dimensional views obtained from a Dental slice Soft ware Computed Tomography and a third set which was surgical interventions results. Teeth crowns were classified into: type I (buccal or labial), type II (palatal or lingual), type III (half distance of the labio-palatal or bucco-palatal ,labio-lingual or bucco-lingual) according to their position within dental arches. The dental soft ware Computed Tomography succeeded to identify the exact situations of whole 40(100%) impacted teeth crowns that were confirmed surgically in the same anatomical locations. On the other hand there was a Failure of 33(82.5%) crowns that could not be determine their positions by two dimensional images and proved surgically in opposite sides. Three dimensional Computed Tomography is a helpful and stimulating tools by providing the surgeons a perfect mulitislices: axial, coronal, sagital, two dimensional and three dimensional images in one visit and once exposure and permits the oral surgeons to visualize the position and surgical anatomy of the tooth as it will be in the operating theatre, thus establishing sufficient patterns for adequate surgical planning ,reduce of need for exploratory procedures with less morbidity to the osseous structure and time saving.


Article
An evaluation of canal transportation and centering ability at different levels of root canals prepared by self-adjusting file using computed tomography (A comparative study)

Authors: Farah Salahalden Abbas فرح صلاح الدين عباس --- Hikmet A. Sh. Al-Gharrawi حكمت الغراوي
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2014 Volume: 26 Issue: 1 Pages: 16-23
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The new concepts and technologies continue to change the dynamics of endodontic practices in the world. Rapid and significant changes in techniques, instrument design, and the type of metals used to manufacture endodontic instruments which have been made during the last few years in an attempt to overcome canal preparation errors. The purpose of this study is to measure and compare canal transportation and centering ability of Self Adjusting File with two rotary nickel-titanium (Ni-Ti) systems, ProTaper and BioRaCe at different levels.Material and Methods: Forty five distal roots of mandibular first molars with moderate curvature were selected using Schneider method. Roots were divided randomly into 3 groups of 15 each and were scanned using Computed Tomography (Initial scan). After canal preparation with ProTaper (group A), BioRaCe (group B), and Self Adjusting File (group C) the roots were rescanned (Final scan), the degree of canal transportation and centering ability were assessed at apical (4 mm), middle (6 mm), coronal (9 mm) sections using computed tomography. The collected data were statistically analyzed using ANOVA and Least Significant Difference tests.Results: There were no statistically significant differences among the groups at level 4 mm and level 9 mm (P ˃ 0.05). However, at level 6 mm there was a highly significant difference between (A) and (B) groups (P ˂ 0.01) and there was a significant difference between (A) and (C) groups (P ˂ 0.05). There were no statistically significant differences among different levels of (A) and (C) groups (P ˃ 0.05), while (B) group showed a highly significant difference between 4 mm and 9 mm levels and between 6 mm and 9 mm levels (P ˂ 0.01). Regarding canal centering ability, there was no statistically significant difference among the three groups at different levels (P ˃ 0.05)., while (B) group showed a significant difference between 4 mm and 9 mm levels (P ˂ 0.05), and a very highly significant difference between 6 mm and 9 mm levels (P ˂ 0.001).Conclusion: The study demonstrated that canal preparation with the three designs of Ni-Ti instruments produced canal transportation. Self Adjusting File group showed less canal transportation than ProTaper group. There was a comparable value of canal centering ability among different levels in each group except in BioRaCe group


Article
Accuracy of spiral computed tomography in evaluation of maxillary sinus septa among dentate and edentulous Iraqi subjects (Comparative study)

Authors: Farah Abdul Salam Hadi فرح عبد السلام هادي --- Ahlam A. Fatah احلام فتاح
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2014 Volume: 26 Issue: 2 Pages: 64-68
Publisher: Baghdad University جامعة بغداد

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Background: Presence of maxillary sinus septa has been known to be a complicating factor for sinus elevationprocedure and implant placement in posterior maxilla. The maxillary sinuses septa are thin walls of cortical boneinside the sinus. They vary in number, location, and height. This study aimed to discover the accuracy of SpiralComputed Tomographic Scan in evaluation the maxillary sinus septa (prevalence, location, height) in subjects withdentate, partially edentulous and completely edentulous maxilla.Material and method: This study included (267) subjects ranged from (20-70 years), (132) male and (135) femaledivided into three groups, (97) fully dentate group, (102) partially edentulous group and (68) completely edentulousgroup who admitted to Spiral Computed Tomography Scan in Al-Karkh General Hospital in Baghdad to haveComputed Tomography Scan of the brain and paranasal sinuses for different diagnostic purposes from November2012 to April 2013. The maxillary sinus septa were evaluated in the axial and sagittal views and the data weresubjected to statistical analysis using Statistical Package for Social Sciences version 20.Result: The prevalence rate of septa was 77.3% among fully dentate maxilla sample. Almost the same prevalencerate was obtained in the other two study sample (partially edentulous maxilla 77.5% and completely edentulousmaxilla 76.5%).No important or statistically significant difference in prevalence was observed between the threestudy groups. Age and gender showed no important or statistically significant difference in prevalence rate in eachstudy group, the mean septal height was slightly higher in fully dentate group (7mm) compared to partiallyedentulous maxilla group (6.2 mm) and completely edentulous maxilla group (6.5 mm). The difference in meanbetween the 3 groups however was not significant statistically. The rate of septa at floor position was significantlylowest in fully dentate maxilla group (36.1%) compared to partially edentulous maxilla group (52.1%) and completelyedentulous maxilla group (53.3%).Conclusion: Spiral Computed Tomography is a precise diagnostic tool for the examination of this zone capable forinvestigating their location and height during different maxillary sinus surgical procedures. In the posterior maxilla,regardless of type of ridge (atrophy/edentulous or non-atrophy/dentate), the anatomical variation of sinus septa isdiverse in its prevalence and location

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