TY - JOUR
T1 - Landmarks for endoscopic approach to the parapharyngeal internal carotid artery
T2 - A radiographic and cadaveric study
AU - Ho, Brian
AU - Jang, David W.
AU - Van Rompaey, Jason
AU - Figueroa, Ramon
AU - Brown, Jimmy J.
AU - Carrau, Ricardo L.
AU - Solares, C. Arturo
PY - 2014/9
Y1 - 2014/9
N2 - Objectives/Hypothesis To define transnasal endoscopic surgical landmarks for the parapharyngeal segment of the internal carotid artery (ppICA) using radiographic analysis and cadaveric dissection. Study Design Cadaveric and radiographic study. Methods One hundred seventy-nine computed tomography angiography studies of the head and neck were analyzed using Osirix third-party software (Pixmeo, Geneva, Switzerland). Dissection of a cadaveric specimen was used as a correlate to radiographic findings. The posterior aspect of the lateral pterygoid process and posterior border of the mandibular ramus were used as bony landmarks for the ppICA. Results At the level of the nasal floor, the distance from the ppICA to the posterolateral pterygoid process and to the posterior mandibular ramus was 2.36 cm and 1.94 cm, respectively, in males, and 2.37 cm and 1.99 cm, respectively, in females. At the level of the skull base, the distance from the ppICA to the posterolateral pterygoid process and to the posterior mandible was 2.33 cm and 1.49 cm, respectively, in males, and 2.20 cm and 1.57 cm, respectively, in females. Cadaver dissection demonstrated the utility of identifying these landmarks. Conclusions The posterior border of the mandibular ramus and the posterolateral aspect of the pterygoid process may serve as consistent bony landmarks for identification of the ppICA. Level of Evidence NA
AB - Objectives/Hypothesis To define transnasal endoscopic surgical landmarks for the parapharyngeal segment of the internal carotid artery (ppICA) using radiographic analysis and cadaveric dissection. Study Design Cadaveric and radiographic study. Methods One hundred seventy-nine computed tomography angiography studies of the head and neck were analyzed using Osirix third-party software (Pixmeo, Geneva, Switzerland). Dissection of a cadaveric specimen was used as a correlate to radiographic findings. The posterior aspect of the lateral pterygoid process and posterior border of the mandibular ramus were used as bony landmarks for the ppICA. Results At the level of the nasal floor, the distance from the ppICA to the posterolateral pterygoid process and to the posterior mandibular ramus was 2.36 cm and 1.94 cm, respectively, in males, and 2.37 cm and 1.99 cm, respectively, in females. At the level of the skull base, the distance from the ppICA to the posterolateral pterygoid process and to the posterior mandible was 2.33 cm and 1.49 cm, respectively, in males, and 2.20 cm and 1.57 cm, respectively, in females. Cadaver dissection demonstrated the utility of identifying these landmarks. Conclusions The posterior border of the mandibular ramus and the posterolateral aspect of the pterygoid process may serve as consistent bony landmarks for identification of the ppICA. Level of Evidence NA
KW - Parapharyngeal internal carotid artery
KW - endoscopic skull base surgery
KW - three-dimensional anatomic rendering
KW - three-dimensional volume rendering
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U2 - 10.1002/lary.24601
DO - 10.1002/lary.24601
M3 - Article
C2 - 24449498
AN - SCOPUS:84906938805
SN - 0023-852X
VL - 124
SP - 1995
EP - 2001
JO - Laryngoscope
JF - Laryngoscope
IS - 9
ER -