No abstract available.
Auscultation* ; Heart*

Artificial Intelligence ; Auscultation

This research is about embodiment of system to support auscultation education more effectively. Cardiac sound data that is stored to PC made many learner deliver by wireless system. For this system we developed a special radio transmitter receiver and a program to manage and remake data. Because of selecting radio system, there is no limitation of establishment and education place. also through web server database and update of data are available. For this reason we can add cardiac sound data newly in education. In case of utilizing existent electron stethoscope in auscultation education, the biggest demerit is that do not deliver sense of sound of actuality stethoscope properly. But radio receiving apparatus that we developed is no difference with sense of sound of cardiac through actuality stethoscope and did so that heighten effect of auscultation education.
Auscultation ; Education ; Heart Sounds ; Stethoscopes

This research is about embodiment of system to support auscultation education more effectively. Cardiac sound data that is stored to PC made many learner deliver by wireless system. For this system we developed a special radio transmitter receiver and a program to manage and remake data. Because of selecting radio system, there is no limitation of establishment and education place. also through web server database and update of data are available. For this reason we can add cardiac sound data newly in education. In case of utilizing existent electron stethoscope in auscultation education, the biggest demerit is that do not deliver sense of sound of actuality stethoscope properly. But radio receiving apparatus that we developed is no difference with sense of sound of cardiac through actuality stethoscope and did so that heighten effect of auscultation education.
Auscultation ; Education ; Heart Sounds ; Stethoscopes

BACKGROUND: In pediatric anesthesia, a method using deliberate endobronchial intubation and auscultation has been used for proper endotracheal tube depth. Tube size, however, may influence on auscultation for air leak between the tube and main bronchus. We attempted to ascertain whether the uncuffed tracheal tube (TT) size affects verifying tube placement by auscultation in children. METHODS: In 23 children, we measured the distance from the carina to the tip of a tube when the first auscultatory sound could be detected on the left chest and when the breathing sound of both chests equalized during withdrawal from right main bronchus. Then, we compared them with those of either a one-size larger or a one-size smaller tube. RESULTS: The distance from the carina to the tip at the first sound was significantly longer in the smaller tracheal tube (1.8 cm vs 1.5 cm, P = 0.01). The tube tip at the equalized breath sounds was 0.6 cm below the carina in both tubes. CONCLUSIONS: These results suggest that detecting endobronchial intubation may be more difficult when using uncuffed tracheal tubes with one-size smaller tube and that auscultation with deliberate bronchial intubation can place the uncuffed TT deeper than an intended depth.
Anesthesia ; Auscultation* ; Bronchi ; Child* ; Humans ; Intubation ; Respiratory Sounds ; Thorax

Mercury sphygmomanometer based on traditional auscultation method is widely used in primary medical institutions in China, but a large amount of blood pressure data can not be directly recorded and applied in scientific research analysis, meanwhile auscultation data is the clinical standard to verify the accuracy of non-invasive electronic sphygmomanometer. Focusing on this, we designed a miniature non-invasive blood pressure measurement and verification system, which can assist doctors to record blood pressure data automatically during the process of auscultation. Through the data playback function,the software of this system can evaluate and verify the blood pressure algorithm of oscillographic method, and then continuously modify the algorithm to improve the measurement accuracy. This study introduces the hardware selection and software design process in detail. The test results show that the system meets the requirements of relevant standards and has a good application prospect.
Auscultation ; Blood Pressure/physiology* ; Blood Pressure Determination ; Oscillometry ; Sphygmomanometers

Bowel sounds is an important indicator to monitor and reflect intestinal motor function, and traditional manual auscultation requires high professional knowledge and rich clinical experience of doctors. In addition, long-time auscultation is time-consuming and laborious， which may lead to misjudgment caused by subjective error. To solve the problem, firstly, the wavelet transform is used to preprocess the bowel sounds signal for noise reduction and enhancement. Secondly, three typical features of intestinal sound were extracted. According to the combination of these features, a three-stage decision was designed to carry out multi-parameter and multi-feature joint threshold detection. This algorithm realized the detection of bowel sound signal and the location of its start and end points, making it possible that the complete bowel sound signal was extracted effectively. In this study, a large number of clinical data and label of bowel sounds were collected, and a new effective evaluation method was proposed to verify the proposed method. The accuracy rate is 83.51%. Results of this study will provide systematic support and theoretical guarantee for the diagnosis of intestinal diseases and the monitoring of postoperative intestinal function recovery of patients.
Algorithms ; Auscultation ; Humans ; Intestines ; Signal Processing, Computer-Assisted ; Wavelet Analysis

Child ; Humans ; Stethoscopes ; Respiratory Sounds ; Auscultation ; Respiratory Tract Diseases ; Electronics

Congenital cystic adenomatoid malformation is rare form of disease causing in the lung. The main symptoms and signs are cyanosis, tachypnea, and other form of respiratory distress at or shortly after birth. In auscultation, decreased breath sound is audible and in chest X-ray, shifting of mediastinum, pulmonary herniation and depression of diaphragm are visualized with cystic shadow. We have experienced a case of cystic adenomatoid malformation of lung. After emergency operation, patients were recovered uneventfully.
Auscultation ; Cyanosis ; Cystic Adenomatoid Malformation of Lung, Congenital* ; Depression ; Diaphragm ; Emergencies* ; Humans ; Lung ; Mediastinum ; Parturition ; Tachypnea ; Thorax

PURPOSE: This study aimed to determine the efficacy and usefulness of chest auscultation and oxygen saturation measurement in the assessment of bronchial hyperresponsiveness to inhaled methacholine in pre-school wheezing children. METHODS: One hundred and four children with histories of wheezing underwent bronchial challenges with nebulized methacholine using chest auscultation and oxygen saturation measurement. The challenge was considered positive when PCW(provocation concentration at wheezing), PCSat(provocation concentration at 5% fall of oxygen saturation), or PCRR(provocation concentration at 50% increase in respiratory rate), was detected below 8 mg/mL of methacholine concentration. Patients were grouped according to their history of wheezing in the previous year:Group 1(children who had no episode, n=45), Group 2(children who wheezed one or two times, n=18), and Group 3(children who wheezed more than three times, n=41). Thirty-three children with no history of wheezing served as normal controls. RESULTS: The geometric means of PCW and PCSat of Group 2 and Group 3 were significantly lower than that of the control group(P<0.0001). There were decreasing tendencies of the geometric means of PCW and PCSat in the order of Group 1, Group 2, and Group 3. The PCRR of Group 3 was significantly lower than the other groups. The proportions of positive responses tend to increase in the order of control group, Group 1, Group 2, and Group 3(P<0.0001). CONCLUSION: We propose that chest auscultation and oxygen saturation measurement for the assessment of bronchial hyperresponsiveness to methacholine in pre-school children are effective and useful for diagnosis of asthma.
Asthma ; Auscultation* ; Child* ; Diagnosis ; Humans ; Methacholine Chloride ; Oxygen* ; Respiratory Rate ; Respiratory Sounds* ; Thorax*