scholarly journals Change in Exposure Index According to the Subject and Foreign Body Movement of Position

2015 ◽  
Vol 8 (26) ◽  
Author(s):  
Mi-Hwa Lee ◽  
Hong-Ryang Jung
Author(s):  
Cristóbal Pera

ABSTRACTIf the human body is really a fabric, should surgeons be considered architects, as some surgeons describe themselves today? The author raises and analyzes this question, and he concludes that vsurgeons cannot be considered as such: the architect is the creator of his work —fabric or building—, but the surgeon is not the creator of this complex biological fabric —vulnerable and subject to deterioration and with an expiration date— which is the human body. This body is the object upon which his hands and instruments operate. The surgeon cures and heals wounds, immobilizes and aligns fractured bones in order to facilitate their good and timely repair, and cuts open the body’s surface in order to reach its internal organs. He also explores the body with his hands or instruments, destroys and reconstructs its ailing parts, substitutes vital organs taken from a donor’s foreign body, designs devices or prostheses, and replaces body parts, such as arteries and joints, that are damaged or worn out. In today’s culture, dominated by the desire to perfect the body, other surgeons keep retouching its aging façade, looking for an iconic and timeless beauty. This longing can drive, sometimes, to surgical madness. The surgeon is not capable of putting into motion, from scratch, a biological fabric such as the human body. Thus, he can’t create the subject of his work in the way that an architect can create a building. In contrast, the surgeon restores the body’s deteriorated or damaged parts and modifies the appearance of the body’s façade.RESUMEN¿Si el cuerpo humano fuera realmente una fábrica, podría el cirujano ser considerado su arquitecto, como algunos se pregonan en estos tiempos? Esta es la cuestión planteada por el autor y, a tenor de lo discurrido, su respuesta es negativa: porque así como el arquitecto es el artífice de su obra —fábrica o edificio— el cirujano no es el artífice de la complejísima fábrica biológica —vulnerable, deteriorable y caducable— que es el cuerpo humano, la cual le es dada como objeto de las acciones de sus manos y de sus instrumentos. El cirujano cura y restaña sus heridas, alinea e inmoviliza sus huesos fracturados para que su reparación llegue a buen término, penetra por sus orificios naturales o dibuja sobre la superficie corporal incisiones que le permitan llegar a sus entrañas, las explora con sus manos o mediante instrumentos, destruye y reconstruye sus partes enfermas, sustituye órganos vitales que no le ayudan a vivir por los extraídos de cuerpos donantes, y concibe, diseña y hace fabricar artefactos o prótesis, como recambio fragmentos corporales deteriorados o desgastados, como arterias o articulaciones. Otros cirujanos, en la predominante cultura de la modificación del cuerpo, retocan una y otra vez su fachada envejecida ineludiblemente por el paso del tiempo, empeñados en la búsqueda incesante de una belleza icónica y mediática e intemporal, una pretensión que puede conducir, y a veces conduce, al desvarío quirúrgico. En definitiva, el cirujano es incapaz de poner de pie, ex novo, una fábrica biológica como la del cuerpo humano y, por lo tanto, no puede ser su artífice, como lo es el arquitecto de su edificio. A lo sumo, es el restaurador de sus entrañas deterioradas y el modificador de su fachada, de su apariencia.


2004 ◽  
Vol 92 (4) ◽  
pp. 2380-2393 ◽  
Author(s):  
M. A. Admiraal ◽  
N.L.W. Keijsers ◽  
C.C.A.M. Gielen

We have investigated pointing movements toward remembered targets after an intervening self-generated body movement. We tested to what extent visual information about the environment or finger position is used in updating target position relative to the body after a step and whether gaze plays a role in the accuracy of the pointing movement. Subjects were tested in three visual conditions: complete darkness (DARK), complete darkness with visual feedback of the finger (FINGER), and with vision of a well-defined environment and with feedback of the finger (FRAME). Pointing accuracy was rather poor in the FINGER and DARK conditions, which did not provide vision of the environment. Constant pointing errors were mainly in the direction of the step and ranged from about 10 to 20 cm. Differences between binocular fixation and target position were often related to the step size and direction. At the beginning of the trial, when the target was visible, fixation was on target. After target extinction, fixation moved away from the target relative to the subject. The variability in the pointing positions appeared to be related to the variable errors in fixation, and the co-variance increases during the delay period after the step, reaching a highly significant value at the time of pointing. The significant co-variance between fixation position and pointing is not the result of a mutual dependence on the step, since we corrected for any direct contributions of the step in both signals. We conclude that the co-variance between fixation and pointing position reflects 1) a common command signal for gaze and arm movements and 2) an effect of fixation on pointing accuracy at the time of pointing.


1988 ◽  
Vol 34 (2) ◽  
pp. 271-281 ◽  
Author(s):  
J. Duncan M. Derrett

The saying of the Mote and Beam (properly Chaff and Pole) has caused some difficulty; but alas an intricate and subtle saying, paradoxical (not absurd), has been domesticated by being seen as a trite commonplace. The obvious questions are why onlyoneeye is involved: for only if both were affected could a foreign body not be extricated; and why does the seer of the Chaff have to have a Pole inhiseye; why, again, does he take the initiative, offering to attend to his ‘brother’, whereas in a case of a foreign body the initiative comes from the sufferer; why is it assumed that a ‘casting out’ will occur (έκβάλλειν has a very sombre semantic scope); and whence comes that grotesque Pole (conventionally ‘beam’)? The answers must be sought in many quarters, viz. (1) a popular saying known in more than one culture, (2) the behaviour of the eye, (3) a common Jewish cluster of idioms, (4) the pious ideal in Israel on the subject of rebuke, reproof, and (5) the Law and the Prophets. Our saying has languished because information from these quarters has not been combined.


Author(s):  
Jitendar M. Sethi ◽  
Bohdan Rozdilsky

SUMMARY:Various examples of foreign body embolization of cerebral arteries, usually followed by serious consequences, have been reported (Lindberg et al, 1961; Chason et al, 1963; Steele et al, 1972; Wetli et al, 1972). However, a shotgun pellet entering the left atrium of the heart through a gunshot wound of the chest with subsequent embolic occlusion of one of the carotid arteries appears to be unique. It is the subject of this short communication.


Author(s):  
Kamiar Aminian

In this chapter, first we outline the advantage of new technologies based on body-fixed sensors and particularly the possibility to perform field measurement, out of a laboratory and during the actual condition of the subject. The relevance of intelligent computing and its potential to enhance those features hidden in biomechanical signals are reviewed. An emphasis is made to show the results produced by these sensors when used alone and new possibilities offered when the information from different type of body fixed sensors are fused. In the second part, the relevance of body fixed sensors in medicine is presented by providing many clinical applications in orthopedics, Parkinson disease, physiology, pain management, and aging. Finally the chapter ends by emphasizing the potential of synergies between body fixed movement monitoring and other areas such as information technology which lead to the development of wearable body movement monitoring.


2018 ◽  
Vol 63 (No. 9) ◽  
pp. 438-442
Author(s):  
S. Cagatay ◽  
AP Gokce ◽  
G. Yesilovali

In this case report, we describe a five-year-old, mixed-breed, neutered male cat weighing 5.7 kg, that was referred to the Near East University Animal Hospital with complaints of dyspnoea, cough and lack of appetite over the preceding two days. Clinical examination revealed marked wheezing during expiration, severe shortness of breath and associated cyanosis. A blood sample was drawn for full blood count, serum biochemical and blood gas analyses. Laterolateral and ventrodorsal radiographic images of the thorax and abdominal region were obtained. A radiopaque foreign body measuring 3 × 9 × 13 mm was detected at the carina of the trachea, aligned in the midst of the fifth–sixth intercostal space. Considering that this foreign body obstructed the tracheal lumen almost completely and had been creating pressure on the tracheal wall for at least two days and also with the aim of preventing potential complications (tracheal rupture, laceration, etc.), after repeated unsuccessful interventions to minimise the time spent under anaesthesia, the object was removed by intercostal thoracotomy. The subject was discharged on the sixth postoperative day and regained its normal state within a short time.


2017 ◽  
Vol 21 (03) ◽  
pp. 255-258
Author(s):  
Pornthep Kasemsiri ◽  
Kanokkan Mahawerawat ◽  
Teeraporn Ratanaanekchai ◽  
Warinthorn Puttarak ◽  
Waranon Munkong

Introduction Some patients with a fishbone as a foreign body of difficult diagnosis may require further investigations. Generally, radiography is used as the first choice for finding the fishbone. Objective The objective of this study is to determine the accuracy of digital radiography for diagnosis of fishbone foreign body in the throat Methods This descriptive experimental study design has three phases. In the first phase, we assessed subject contrast and visibility of fishbone on a homogeneous background; as for the second phase, we evaluated the embedded fishbone in the fresh cadaver's throat. In the last phase, we studied the accuracy of radiography in diagnosing the fishbone foreign body at any site of the cadaver's throat. Results The subject contrast of 15 fishbones ranged from 0.94 to 0.99. All types of fishbone were obvious in the first phase, whereas, in the second phase, visibility of fishbone was varied. The subject contrast and diameter of fishbone did not show statistically significant correlation with visibility (p = 0.09 and p = 0.24, respectively). In the third phase, embedded fishbone in the base of tongue was detected with the highest accuracy (sensitivity of 1.00 (95%CI: 0.44–1.00) and specificity of 0.92 (95%CI: 0.65–0.99)); whereas, the tonsil was of difficult interpretation with poorest diagnostic value (sensitivity of 0.00 (95%CI: 0.00–0.56) and specificity of 1.00 (95%CI: 0.76–1.00)). Conclusion The digital radiography provides the highest accuracy and benefit to the diagnosis of a fishbone foreign body at the base of the tongue; whereas, the tonsil was of difficult interpretation.


Author(s):  
Weiping wang ◽  
Shangyingying Li ◽  
Hui Liu ◽  
Qin Tian ◽  
Hang Chen ◽  
...  

Background: There is no consensus regarding the optimal anesthetic approach to rigid bronchoscopy in children suffering from tracheobronchial FBA. We performed this meta-analysis to assess the efficacy and safety of the different anesthesia agents and ventilation modes for tracheobronchial foreign body removal via rigid bronchoscopy in young children. Methods: A systematic search of three major databases for all relevant articles. A meta-analysis was performed to analyze the data. Results: Four trials for evaluating different anesthetics and six trials for evaluating two kinds of ventilation modes were found. Compared with the sevoflurane-based volatile anesthesia group , the rate of perioperative complications included hypoxemia (OR, 2.07; 95% CI, 1.38–3.11; P=0.0004; I2 = 0%), apnea (OR, 2.74; 95% CI, 1.11–6.78; P = 0.03; I2 = 60%), laryngospasm (OR, 2.89; 95% CI, 1.67–4.98; P=0.0001; I2 = 0%), cough/bucking (OR, 2.93; 95% CI, 1.86–4.63; P<0.00001; I2 = 0%), and body movement (OR, 3.51; 95% CI, 2.03–6.09; P<0.00001; I2 = 0%) were significantly increased in the propofol-based total intravenous anesthesia and the duration of operation were longer in the Group Prop. Compared with the control ventilation group , the incidences of laryngospasm (OR, 0.16; 95% CI, 0.05–0.56; P=0.004; I2 = 54%), apnea (OR, 0.21; 95% CI, 0.09–0.50; P=0.0004; I2 = 0%), and cough/bucking (OR, 0.03; 95% CI, 0.01–0.10; P<0.00001; I2 = 41%) increased in the spontaneous ventilation group and the duration of operationand emergence from anesthesia significantly prolonged in the Group SV. Conclusions: Our meta-analysis suggests that sevoflurane-based volatile anesthesia was superior to propofol-based total intravenous anesthesia for the management of foreign body aspiration in children. There is still no strong evidence indicated that one ventilation technique was superio


2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S683-S684
Author(s):  
He Zhou ◽  
Bijan Najafi

Abstract This study evaluated an innovative wearable sensor based platform (instrumented trail-making task, iTMT) to quickly quantify frailty phenotypes, without the need of walking test. 61 older adults (age=72.8 ± 9.9years, BMI=27.4±4.9kg/m2) were recruited and assessed by Fried Frailty Criteria to determine frailty phenotypes. All subjects participated the iTMT test by standing in front of a computer, wearing a wearable sensor on the front lower shin. The sensor tracked the subject’s ankle movement and projected it on a computer-screen as a moving cursor at real-time. The subject rotated the ankle joint to navigate the cursor to reach 5 indexed circles (including numbers 1-to-3 and letters A&B placed in random orders) in the alternative order of numbers and letters. The iTMT required coordination of brain and body movement, testing subject’s cognitive-motor function. The sensor quantified ankle-rotation biomechanics during the test. All subjects completed the iTMT with average time less than 3 minutes. The ankle-rotation velocity generated during the test distinguished between the presence and absence of Slowness phenotype (Cohen’s effect size d=1.40, p&lt;0.001). The decline of ankle-rotation velocity determined the presence of Exhaustion phenotype (d=0.98, p=0.003). The ankle-rotation power generated during the test determined the presence of Weakness phenotype (d=1.38, p&lt;0.001). The ankle-velocity variability determined the presence of Inactivity phenotype (d=0.90, p&lt;0.001). This study demonstrated the feasibility and validity of the iTMT to quantify frailty phenotypes. This new platform is time-efficient and doesn’t require walking test. It’s more practical for routine assessment in small and busy clinics among patients with mobility limitation.


2000 ◽  
Vol 39 (02) ◽  
pp. 130-133 ◽  
Author(s):  
Y. Saitoh ◽  
T. Kiryu ◽  
K. Okamoto ◽  
K. Sakai ◽  
J. Hori

Abstract:The restoration of X-ray images that have been blurred due to body movement are discussed. The observation system for these images is described using a mathematical model, and several restoration filters composed of a series of such models are proposed. These filters restore band-suppressed approximations of the original images. In addition, redundancy is introduced into these restoration filters in order to suppress additive noise. These filters are expanded to be applicable not only to parallel translations, but also to rotations by coordinate transformation. The proposed methods are applied to blurred X-ray images of a bone model of the elbow joint. The parameters of the restoration filter are estimated using a marker attached to the subject as a reference signal.


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