scholarly journals Does Radar Technology Support the Diagnosis of Pneumothorax? PneumoScan—A Diagnostic Point-of-Care Tool

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
T. Lindner ◽  
M. Conze ◽  
C. E. Albers ◽  
B. A. Leidel ◽  
P. Levy ◽  
...  
Keyword(s):  
Clinical Examination ◽  
Predictive Value ◽  
Chest Trauma ◽  
Point Of Care ◽  
Diagnostic Value ◽  
Technology Support ◽  
Trauma Room ◽  
X Ray ◽  
Life Threatening ◽  
Chest X Ray

Background. A nonrecognized pneumothorax (PTX) may become a life-threatening tension PTX. A reliable point-of-care diagnostic tool could help in reduce this risk. For this purpose, we investigated the feasibility of the use of the PneumoScan, an innovative device based on micropower impulse radar (MIR).Patients and Methods. addition to a standard diagnostic protocol including clinical examination, chest X-ray (CXR), and computed tomography (CT), 24 consecutive patients with chest trauma underwent PneumoScan testing in the shock trauma room to exclude a PTX.Results. The application of the PneumoScan was simple, quick, and reliable without functional disorder. Clinical examination and CXR each revealed one and PneumoScan three out of altogether four PTXs (sensitivity 75%, specificity 100%, positive predictive value 100%, and negative predictive value 95%). The undetected PTX did not require intervention.Conclusion. The PneumoScan as a point-of-care device offers additional diagnostic value in patient management following chest trauma. Further studies with more patients have to be performed to evaluate the diagnostic accuracy of the device.

scholarly journals 732. Sensitivity and Specificity of Point of Care Lung Ultrasound vs. Chest X-Ray for the Diagnosis of Pediatric Pneumonia in Limited resource settings: The Zambia Experience

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S464-S464
Author(s):  
Ingrid Y Camelo ◽  
Rachel Pieciak ◽  
Ilse castro-aragon ◽  
Bindu Setty ◽  
Lauren Etter ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Predictive Value ◽  
Gold Standard ◽  
Point Of Care ◽  
Severe Pneumonia ◽  
Limited Resource ◽  
Ultrasound Images ◽  
X Ray ◽  
Pediatric Pneumonia ◽  
Chest X Ray

Abstract Background Pediatric pneumonia is the leading cause of child mortality in low-income countries. Pneumonia diagnosis is a challenge. Chest x-ray (CXR) is considered the gold standard, but it exposes children to ionizing radiation, and access to CXR is limited to hospital settings. Lung Point of Care Ultrasound (POCUS) is a portable and non-radiating alternative to CXR. Methods We enrolled 200 children aged 1-59 months from the University Teaching Hospital (UTH) Emergency Department (ED) in Lusaka, Zambia who met the WHO (World Health Organization) case definition for severe pneumonia. From each child, we collected demographic and clinical data, a CXR, and a set of ultrasound images using a Butterfly ultrasound probe. Images were independently interpreted by two radiologists blinded to the results of the other imaging modality. Using CXR as the gold standard, we determined the sensitivity and specificity, positive and negative predictive values, and likelihood ratios for pneumonia using lung POCUS. Results This preliminary analysis included 50 children seen between May-October 2020. Median age (9 months) (Range 4-15). 58% were male, (29/50). Median temperature was 37.3⁰C (range 36.5-38.0); median respiratory and pulse rates were 41 breaths/min (range 31-50) and 139 beats/min (range 124-160) respectively; median SpO2 on RA was 91% (range 89-95). 50% of cases had difficulty breathing (82%, 41/50); chest retractions (70%, 35/50) and grunting (62%, 31/50). Ultrasound images for 49/50 (98%) cases and CXRs for 50/50 (100%) of cases we analyzed. Sensitivity of lung POCUS in the detection of CAP was 61% (95% Cl: 0.52-0.84). The specificity was 77% (95% Cl: 0.56-0.91). Positive predictive value (PPV) 70% (95% CI: 0.62-0.94) and negative predictive value (NPV) 69% (95% CI: 0.56-0.79). Conclusion Preliminary findings of this study demonstrated the lower diagnostic accuracy of lung POCUS versus CXR in the detection of pneumonia in children 1- 59 months. The high specificity of the test will aid in ruling out severe pneumonia in children. Due to its availability, ease of interpretation, and absence of radiation exposure, lung POCUS should still be considered as an important initial imaging tool for the diagnosis of CAP in children in limited-resource settings. Disclosures All Authors: No reported disclosures

DIAGNOSTIC ACCURACY OF CHEST X-RAY IN THE DETECTION OF PNEUMOTHORAX IN BLUNT CHEST TRAUMA PATIENTS WITH CT AS THE GOLD STANDARD

2021 ◽  
Vol 5 (7) ◽  
Author(s):  
Danquale Vance Kynshikhar ◽  
Chaman Lal Kaushal ◽  
Ashwani Tomar ◽  
Neeti Aggarwal
Keyword(s):  
Diagnostic Accuracy ◽  
Predictive Value ◽  
Gold Standard ◽  
Blunt Chest Trauma ◽  
Chest Trauma ◽  
Trauma Patients ◽  
Care Level ◽  
X Ray ◽  
Primary Health ◽  
Chest X Ray

Background: To study the diagnostic accuracy of chest X-ray in the detection of pneumothorax in blunt chest trauma patients with CT as the Gold Standard Methods: The present study was conducted from 31th July 2018 to 30th July 2019. A total of 36 patients were enrolled in the study. Results: On Chest X-Ray Supine AP view, pneumothorax was detected in 11 of 24 patients. The sensitivity of Chest X-Ray Supine AP view was 45.83%, specificity was 100%, positive predictive value (PPV) was 100%, negative predictive value (NPV) was 48% and accuracy was 63.89% for the diagnosis of pneumothorax. Conclusion: A Chest radiograph is the most preferred and relevant primary investigation in the diagnosis of pneumothorax even with the various advanced techniques that are available. X-ray being relatively cheaper and is easily available even at the peripheral centers at the primary health care level. Keywords: X-ray, CT, Pneumothorax

scholarly journals Point-of-Care Diagnostic Device for Traumatic Pneumothorax: Low Sensitivity of the Unblinded PneumoScan™

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
M. Rehfeldt ◽  
A. Slagman ◽  
B. A. Leidel ◽  
M. Möckel ◽  
T. Lindner
Keyword(s):  
Chest Trauma ◽  
Point Of Care ◽  
Diagnostic Tools ◽  
Trauma Room ◽  
Trauma Room Management ◽  
Life Threatening ◽  
Traumatic Pneumothorax ◽  
Low Sensitivity ◽  
Positive Results ◽  
Rule Out

Background. Traumatic Pneumothorax (PTX) is a potentially life-threatening injury. It requires a fast and accurate diagnosis and treatment, but diagnostic tools are limited. A new point-of-care device (PneumoScan) based on micropower impulse radar (MIR) promises to diagnose a PTX within seconds. In this study, we compare standard diagnostics with PneumoScan during shock-trauma-room management. Patients and Methods. Patients with blunt or penetrating chest trauma were consecutively included in the study. All patients were examined including clinical examination with auscultation (CE) and supine chest radiography (CXR). In addition, PneumoScan-readings and thoracic ultrasound scan (US) were performed. Computed tomography (CT) served as gold standard. Results. CT scan revealed PTX in 11 patients. PneumoScan detected two PTX correctly but missed nine. 15 false-positive results were found by PneumoScan, leading to a sensitivity of 20% and specificity of 80%. Six PTX were detected through CE (sensitivity: 54,5%). CXR detected four (sensitivity: 27,3%) and thoracic US two PTX correctly (sensitivity: 25%). Conclusion. The unblinded PneumoScan prototype did not confirm the promising results of previous studies. The examined standard diagnostics and thoracic US showed rather weak sensitivity as well. Until now, there is no appropriate point-of-care tool to rule out PTX.

scholarly journals Diagnosing gastric volvulus in chest X-ray: report of three cases

2020 ◽  
Vol 2020 (7) ◽  
Author(s):  
Narendra Pandit ◽  
Abhijeet Kumar ◽  
Tek Narayan Yadav ◽  
Qamar Alam Irfan ◽  
Sujan Gautam ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Acute Abdomen ◽  
Gastric Volvulus ◽  
X Ray ◽  
Pain Abdomen ◽  
Life Threatening ◽  
Chest X Ray ◽  
High Index Of Suspicion ◽  
Specific Symptoms ◽  
Prompt Diagnosis

Abstract Gastric volvulus is a rare abnormal rotation of the stomach along its axis. It is a surgical emergency, hence requires prompt diagnosis and treatment to prevent life-threatening gangrenous changes. Hence, a high index of suspicion is required in any patients presenting with an acute abdomen in emergency. The entity can present acutely with pain abdomen and vomiting, or as chronic with non-specific symptoms. Chest X-ray findings to diagnose it may be overlooked in patients with acute abdomen. Here, we report three patients with gastric volvulus, where the diagnosis was based on the chest X-ray findings, confirmed with computed tomography, and managed successfully with surgery.

Life-threatening presentation of a parahiatal hernia after esophagectomy: a case report and review of the literature

2021 ◽  
Vol 14 (6) ◽  
pp. e242158
Author(s):  
Camille Plourde ◽  
Émilie Comeau
Keyword(s):  
Small Bowel ◽  
Transverse Colon ◽  
Acute Abdominal Pain ◽  
Haemodynamic Instability ◽  
Acute Setting ◽  
X Ray ◽  
Left Diaphragm ◽  
Life Threatening ◽  
Chest X Ray ◽  
Obstructive Shock

A woman presented to our hospital with acute abdominal pain 7 months following an oesophagectomy. A chest X-ray revealed a new elevation of the left diaphragm. CT demonstrated a large left diaphragmatic hernia incarcerated with non-enhancing transverse colon and loops of small bowel. She deteriorated rapidly into obstructive shock and was urgently brought to the operating room for a laparotomy. The diaphragmatic orifice was identified in a left parahiatal position, consistent with a parahiatal hernia. Incarcerated necrotic transverse colon and ischaemic loops of small bowel were resected, and the diaphragmatic defect was closed primarily. Because of haemodynamic instability, the abdomen was temporarily closed, and a second look was performed 24 hours later, allowing anastomosis and definitive closure. Parahiatal hernias are rare complications following surgical procedures and can lead to devastating life-threatening complications, such as an obstructive shock. Expeditious diagnosis and management are required in the acute setting.

scholarly journals A dangerous pleural effusion

2010 ◽  
Vol 92 (5) ◽  
pp. e53-e54 ◽  
Author(s):  
Somprakas Basu ◽  
Shilpi Bhadani ◽  
Vijay K Shukla
Keyword(s):  
Rare Complication ◽  
Sudden Onset ◽  
Biliary Surgery ◽  
Biliary Leak ◽  
X Ray ◽  
Delay In Diagnosis ◽  
Aged Woman ◽  
Middle Aged Woman ◽  
Life Threatening ◽  
Chest X Ray

Bilothorax is a rare complication of biliary peritonitis and, if not treated promptly, can be life-threatening. We report a case of a middle-aged woman who had undergone a bilio-enteric bypass and subsequently a biliary leak developed, which finally led to intra-abdominal biliary collection and spontaneous bilothorax. The clinical course was rapid and mimicked venous thromboembolism, myocardial infarction and pulmonary oedema, which led to a delay in diagnosis and management and finally death. We high-light the fact that bilothorax, although a rare complication of biliary surgery, should always be considered as a probable cause of massive effusion and sudden-onset respiratory and cardiovascular collapse in the postoperative period. A chest X-ray and a diagnostic pleural tap can confirm the diagnosis. Once detected, an aggressive management should be instituted to prevent organ failure and death.

scholarly journals Interest of Ultrasound in the Exploration of Rotator Cuff Lesions - Confrontation of Clinical Examination and Ultrasound Finding

2018 ◽  
Vol 5 ◽  
Author(s):  
Nessrine Akasbi ◽  
Asmae El Aissaoui ◽  
Ikrame Yazghich ◽  
Samira El Fakir ◽  
Taoufik Harzy
Keyword(s):  
Rotator Cuff ◽  
Physical Examination ◽  
Clinical Examination ◽  
High Sensitivity ◽  
Diagnostic Value ◽  
Ultrasound Finding ◽  
X Ray ◽  
Rotator Cuff Lesion ◽  
Rotator Cuff Lesions ◽  
A Prospective Study

Introduction: The aim of our study was to evaluate the interest of ultrasound in the exploration of painful shoulders evoking rotator cuff lesions and to determine the diagnostic value of the different tendon tests through a confrontation physical examination versus shoulder ultrasound. Materials and methods: A prospective study was conducted including patients consulting for shoulder pain that suggests a rotator cuff lesion. All patients underwent a clinical examination, an x ray and shoulder ultrasound.Results: The confrontation physical examination versus shoulder ultrasound showed that Jobe's test is very sensitive (100%) but less specific (27%), the Patte test, has a high sensitivity (100%) but an average specificity (51%), the Palm-Up test was fairly sensitive (91%) but not very specific (43%) and the Gerber test was more specific (95.7%) and less sensitive (38%). The comparison between x ray and ultrasound showed that ultrasound of shoulder is more efficient in the detection of calcifications and erosions of humeral head.Conclusion: Ultrasound of shoulder is more performant than physical examination and x ray in exploring the rotator cuff lesions.

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