Diagnosis and treatment planning of acute aortic emergencies using a handheld DICOM viewer

Asim Choudhri, Patrick T. Norton, Thomas M. Carr, James R. Stone, Klaus D. Hagspiel, Michael D. Dake

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Acute aortic syndromes and traumatic aortic injury are often diagnosed on CT angiography, possibly requiring emergent intervention. Advances in handheld computing have created the possibility of viewing full DICOM datasets from a remote location. We evaluated the ability to diagnose and characterize acute aortic pathologies on CT angiograms of the thorax using an iPhone-based DICOM viewer. This study was performed after Institutional Review Board approval. Fifteen CT angiograms of the thorax in suspected acute aortic syndromes were evaluated by three blinded radiologists on a handheld device using a DICOM viewer. Studies were evaluated for the ability to identify and classify aortic dissection, transection, or intramural hematoma, measure aortic dimensions, and identify mediastinal hematoma, arch variants, and pulmonary pathology. Studies were compared to blinded interpretations on a dedicated PACS workstation. The aortic pathology was correctly identified as aortic transection/pseudoaneurysm (n = 5), type A dissection (n = 2), and type A intramural hematoma (n = 1) by all reviewers, with no false-positive interpretations. This represents a sensitivity and specificity of 100 %. Mediastinal hematoma (n = 6), pneumothorax (five right, three left), and arch vessel involvement (n = 2) were identified in all cases. There was 88.5 % accuracy in identifying arch variants. Measurement of the size of the involved aortic segment was similar on handheld device and PACS workstation; however the adjacent normal aorta was 1.2 ± 1.0 mm larger on the handheld device (p = 0.03). Handheld DICOM viewers may be useful for emergent consultations and triage, and may expedite preprocedure planning to reduce the time interval between diagnostic scan and therapeutic intervention.

Original languageEnglish (US)
Pages (from-to)267-272
Number of pages6
JournalEmergency Radiology
Volume20
Issue number4
DOIs
StatePublished - Aug 1 2013

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Hematoma
Emergencies
Pathology
Equipment and Supplies
Dissection
Angiography
Thorax
Triage
Research Ethics Committees
False Aneurysm
Pneumothorax
Therapeutics
Aorta
Referral and Consultation
Sensitivity and Specificity
Lung
Wounds and Injuries

All Science Journal Classification (ASJC) codes

  • Emergency Medicine
  • Radiology Nuclear Medicine and imaging

Cite this

Diagnosis and treatment planning of acute aortic emergencies using a handheld DICOM viewer. / Choudhri, Asim; Norton, Patrick T.; Carr, Thomas M.; Stone, James R.; Hagspiel, Klaus D.; Dake, Michael D.

In: Emergency Radiology, Vol. 20, No. 4, 01.08.2013, p. 267-272.

Research output: Contribution to journalArticle

Choudhri, Asim ; Norton, Patrick T. ; Carr, Thomas M. ; Stone, James R. ; Hagspiel, Klaus D. ; Dake, Michael D. / Diagnosis and treatment planning of acute aortic emergencies using a handheld DICOM viewer. In: Emergency Radiology. 2013 ; Vol. 20, No. 4. pp. 267-272.
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