Brain Death | Computed Tomography Angiography to Brain Death Assessment

Brain Death research study

What is the primary objective of this study?

The purpose of this study is to assess the reliability of computed tomography angiography (CTA) to diagnose brain death, face of several conditions that make impossible to define such diagnosis using clinical criteria exclusively.

Who is eligible to participate?

Inclusion Criteria: - Individuals of any age or sex with brain death suspicion raised, before clinical test. - Comatose patients presenting Glasgow Coma Score as or under 5 points, under sedative agents or not. Exclusion Criteria: - Brain dead patients clinically confirmed. - Contraindications to the use of contrast medium (renal failure or allergy).

Which medical condition, disease, disorder, syndrome, illness, or injury is researched?

Brain Death

Study Interventions

Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.

Study Arms

Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.

Study Status


Start Date: January 2014

Completed Date: December 2016


Type: Observational


Primary Outcome: Assess the presence or absence of contrast medium filling of the intracranial vessels in comatose patients.

Secondary Outcome:

Study sponsors, principal investigator, and references

Principal Investigator: Sergio Brasil, MD

Lead Sponsor: Sergio Brasil

Collaborator: University of Sao Paulo

More information:

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Welschehold S, Kerz T, Boor S, Reuland K, Thömke F, Reuland A, Beyer C, Wagner W, Müller-Forell W, Giese A. Detection of intracranial circulatory arrest in brain death using cranial CT-angiography. Eur J Neurol. 2013 Jan;20(1):173-9. doi: 10.1111/j.1468-1331.2012.03826.x. Epub 2012 Jul 12.

Rieke A, Regli B, Mattle HP, Brekenfeld C, Gralla J, Schroth G, Ozdoba C. Computed tomography angiography (CTA) to prove circulatory arrest for the diagnosis of brain death in the context of organ transplantation. Swiss Med Wkly. 2011 Oct 4;141:w13261. doi: 10.4414/smw.2011.13261. eCollection 2011.

Bohatyrewicz R, Sawicki M, Walecka A, Walecki J, Rowinski O, Bohatyrewicz A, Kanski A, Czajkowski Z, Krzysztalowski A, Solek-Pastuszka J, Zukowski M, Marzec-Lewenstein E, Wojtaszek M. Computed tomographic angiography and perfusion in the diagnosis of brain death. Transplant Proc. 2010 Dec;42(10):3941-6. doi: 10.1016/j.transproceed.2010.09.143. Erratum in: Transplant Proc. 2011 Mar;43(2):668. Kanski, A [added].

Berenguer CM, Davis FE, Howington JU. Brain death confirmation: comparison of computed tomographic angiography with nuclear medicine perfusion scan. J Trauma. 2010 Mar;68(3):553-9. doi: 10.1097/TA.0b013e3181cef18a.

Escudero D, Otero J, Marqués L, Parra D, Gonzalo JA, Albaiceta GM, Cofiño L, Blanco A, Vega P, Murias E, Meilan A, Roger RL, Taboada F. Diagnosing brain death by CT perfusion and multislice CT angiography. Neurocrit Care. 2009;11(2):261-71. doi: 10.1007/s12028-009-9243-7. Epub 2009 Jun 30.

Frampas E, Videcoq M, de Kerviler E, Ricolfi F, Kuoch V, Mourey F, Tenaillon A, Dupas B. CT angiography for brain death diagnosis. AJNR Am J Neuroradiol. 2009 Sep;30(8):1566-70. doi: 10.3174/ajnr.A1614. Epub 2009 Apr 30.

Dupas B, Gayet-Delacroix M, Villers D, Antonioli D, Veccherini MF, Soulillou JP. Diagnosis of brain death using two-phase spiral CT. AJNR Am J Neuroradiol. 1998 Apr;19(4):641-7.

Leclerc X, Taschner CA, Vidal A, Strecker G, Savage J, Gauvrit JY, Pruvo JP. The role of spiral CT for the assessment of the intracranial circulation in suspected brain-death. J Neuroradiol. 2006 Apr;33(2):90-5.

Combes JC, Chomel A, Ricolfi F, d'Athis P, Freysz M. Reliability of computed tomographic angiography in the diagnosis of brain death. Transplant Proc. 2007 Jan-Feb;39(1):16-20.

Quesnel C, Fulgencio JP, Adrie C, Marro B, Payen L, Lembert N, El Metaoua S, Bonnet F. Limitations of computed tomographic angiography in the diagnosis of brain death. Intensive Care Med. 2007 Dec;33(12):2129-35. Epub 2007 Jul 21.

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