Monday, August 31, 2015

Application Value of DR Photography in Diagnosis of Rib Fractures

#x-ray##digital radiography##medical device# At present, with the rapid development of construction, transportation, etc. All kinds of accidents occurred frequently in our country, among them, the rise in chest trauma is very obvious. Our various accidents occur frequently, which is very significant increase in chest trauma. According to investigation statistics. Materials and Methods Chest trauma, rib fractures highest incidence, accounting for about 87.6% . This study was to explore the clinical value of DR photography rib fracture diagnosis, retrospectively analyzed the clinical data of 204 cases of patients with rib fractures, the results reported below.
Materials and Methods
Select from June 2013 to June 2014 rib fractures were treated in our hospital 204 cases of the study, the clinical symptoms are manifested as pain when squeezing chest pain when coughing and breathing becomes stronger Some patients exist local swelling, congestion phenomenon, at the same time with the difficulties. 204 cases of patients, male 140 cases, female 64 cases; age of 19.73 years, mean (46.4 ± 5.2) years. Because of traffic accidents resulting in rib fractures in patients 98 cases. Accounting for 48.04%; 52 cases of patients with fractures caused by falls, accounting for 25.49%; 44 cases was caused by assault, accounting for 21.57%; 10 cases was due to other causes. Accounting for 4.90%. All patients underwent routine x-ray examination after the line DR photography.
The method will be set in the value DR diagnosis of 141 kV, and the use of AEC automatic exposure, obtain the data sent to the server in order to obtain an image. Conventional x-ray exposure conditions for 65.85 kv, mAs of 12.5 ~ 25 mAs. When using two methods for diagnosis, all patients were treated with the same position, so that more scientific and accurate discussion of the differences between the two late. To shoot a film close to the injured area, including the position left, right position and standing position, the patient in this process need breath, and after the diaphragm, the diaphragm rib sheet printed out separately. May exist for patients with fractures, it is necessary to increase beat their left anterior or right anterior oblique ribs. For chest X-ray did not explicitly shown in patients with fractures and clinical symptoms were consistent with, and they have taken the line tangential way, and pay attention to the alignment of the thoracic tangent point tenderness. You can select the appropriate position on the basis of the patient's own specific circumstances. And then arrange several senior doctors to analyze the ribs image for final confirmation, then you can refer to the following criteria: complete fracture: fracture line runs through the ribs cortex, and there are angled at its ends, and inserted into the phenomenon of displacement; Incomplete fracture: Trauma and Injury obvious location is more suspicious, while there is one side of the cortex uplift or breakage.
A closer look at patient x-ray showing what characteristics. While recording with conventional x-ray photography for clinical diagnosis rate DR rib fracture diagnosis, misdiagnosis rate.
Methods to summary and analysis of the data, using SPSS 17.0 software for statistical processing, count data using the number of cases and percentage.. Comparative Application x2 test, with P <0.05 indicates a statistically significant difference.
Result
According to test results showed the fracture, rib fractures in 204 patients. A total of 398 the number of fractures. Which it is located 247 arch rib fractures, located in front of the rib has 55, located behind the ribs there are 96. Divided according to the degree of fracture, incomplete fracture patients have 58 cases. The remaining 146 cases, compared with patients with complete fractures.
Conventional × optical initial diagnosis of rib fracture results in comparison with the DR 204 cases when patients with newly diagnosed, conventional x-ray diagnosis was 81.16%, misdiagnosis rate was 18.84%; DR Photography diagnosis rate of 92.46 percent, missedIt was 7.54%, significantly different statistically significant (P <0.05).
Discuss
Since the ribs for the bow, and in the broader scope of the chest and abdomen are rendered as curved space, and basically take shape gradually inclined from the upper portion at the front, increasing to 9 ribs at the start decreasing. By its form on, people once suffered chest injuries, rib fractures are much more. Because older children rib elastic and therefore less fracture phenomena and adults, the elderly due to the gradual decline in function, loose between the ribs, with greater brittleness. Therefore, multiple fractures in adults and the elderly. Rib fractures affected how and where the force, the final results are different, for example if due to external violence, once broken bones, the end result may appear the phenomenon of blood pneumothorax or chest wall hematoma. Both Jl green shape with respect to a serious threat to human life. The application of conventional x-ray to check, because of its film and processing times longer, there may be delays in the best timing of treatment. Based on this, DR digital imaging system has been widely used. DR direct digital photography is photography, first underwent x-ray capture, and image data obtained after the images are stored in the board. Then after reading through the means, the image displayed on the computer after the conversion process by grayscale images will be displayed. It is capable of image latitude, sharpness and contrast adjustment, can effectively compensate for the lack of conventional x-ray.
For conventional x-ray, most fractures are able to diagnose. For some of the more minor fracture Missed appears obvious place, mainly due to the rib shape, X-ray density is not high resolution and image overlay effects. Then lead to medical disputes. The DR photography with the higher density resolution and exposure latitude, for tissue density difference of less than 1% of the object can tell the difference. Therefore DR Photography can get richer and clearer than conventional x-ray image. In the present study, when 204 cases of newly diagnosed patients, conventional x-ray diagnosis was 81.16%, DR photographic diagnosis was 92.46%. And then visit, conventional X-ray diagnostic rate was 69.33%. DR diagnosis was 90.00%, compared to a significant difference (P <0.05). The results of the present results with the Luo evening glow similar. Thus, the application of DR photography has a high detection rate when diagnosing rib fracture.
In this study. Missed or there. When diagnosed, conventional x-ray missed diagnosis rate was 18.84%; DR Photography missed diagnosis rate was 7.54%. Then referral, conventional x-ray missed diagnosis rate was 30.67%, DR misdiagnosis rate of 1,000 percent. After clinical analysis.It found that there may be several reasons: ribs were many pleural effusion covered. Affect its display; tissues and organs below the diaphragm ribs and overlaps difficult to show fracture status: intense pain fracture patients, it is difficult with the physician rotated position, resulting in the axillary line rib angle is difficult to display. At the same time exposure conditions. Appropriate exposure conditions and position. While adhering film-reading system, making the choice of complementary inspection methods. This can effectively reduce the rate of misdiagnosis.
In summary, the rib fractures do not exist independently in the chest, once on the chest trauma. Pleural effusion, pulmonary contusion and complications can occur. So for rib fractures in patients with more severe cases, it is recommended to use DR photography mode. DR Photography can effectively improve the detection rate, less time-consuming, with high clinical value, should be introduced.


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