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Congress: ECR25
Poster Number: C-27709
Type: Poster: EPOS Radiologist (scientific)
Authorblock: R. B. Philip, P. C. P. Joshi; Pune/IN
Disclosures:
Robin Blessen Philip: Nothing to disclose
Priscilla Col Priscilla Joshi: Nothing to disclose
Keywords: Artificial Intelligence, Emergency, Respiratory system, CT-Angiography, Echocardiography, Experimental, Technology assessment, Embolism / Thrombosis
Purpose Acute pulmonary thromboembolism (PTE), a potentially life-threatening condition, occurs when an embolus, typically originating from thrombosis in the deep veins of the lower limbs, obstructs the pulmonary arterial circulation. This obstruction can lead to right heart failure, pulmonary infarction, and even sudden death. Prognosis varies widely depending on the severity of the embolism and the patient’s comorbidities.  Treatment strategies range from anticoagulation in stable patients to thrombolysis or surgical embolectomy for patients with massive or high-risk PTE, thus emphasizing the need...
Read more Methods and materials This prospective observational study was approved by the institutional ethics committee of our hospital.Study PatientsThis was an interim analysis of 29  patients, out of which  31% were females and  69 % were males. These patients , referred to the radiology department for CTPA with a clinical suspicion of pulmonary thromboembolism, underwent DDR in the supine position prior to the CTPA. A transthoracic 2D echocardiography (TTE) was done as standard of care as part of the workup of PTE to evaluate cardiac function. Patients referred for CTPA for non...
Read more Results Our preliminary findings reveal DDR shows a promising potential as a screening tool in patients with suspected pulmonary embolism. Initial analysis demonstrates encouraging diagnostic performance with a sensitivity of 54.55% (95% CI: 23.38–83.25%), indicating its capacity to identify a substantial proportion of patients with confirmed pulmonary embolism. The wide confidence interval underscores the ongoing nature of our investigation and the potential for improved performance with further optimization of acquisition and analysis protocols. Furthermore, DDR demonstrated a specificity of 66.67% (95%...
Read more Conclusion The preliminary findings of this study strongly suggest that DDR represents a highly promising, non-invasive approach for evaluating suspected pulmonary embolism. With the distinct advantages of being intravenous contrast-free, radiation-conscious, and readily accessible, DDR is poised to transform clinical practice. The recent availability of portable DDR units further enhances its potential, enabling bedside application in intensive care units. As the utility of DDR in both the detection and follow-up of pulmonary embolism becomes clearer, its integration into clinical workflows is...
Read more References Reference article:Yamasaki Y, Abe K, Kamitani T, Hosokawa K, Hida T, Sagiyama K, Matsuura Y, Baba S, Isoda T, Maruoka Y, Kitamura Y, Moriyama S, Yoshikawa H, Fukumoto T, Yabuuchi H, Ishigami K. Efficacy of Dynamic Chest Radiography for Chronic Thromboembolic Pulmonary Hypertension. Radiology. 2023 Mar;306(3):e220908. doi: 10.1148/radiol.220908. Epub 2022 Nov 8. PMID: 36346313.
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