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Head and Neck Anatomy

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1. Auto-contouring via Automatic Anatomy Recognition of Organs at Risk in Head and Neck Cancer on CT images (PubMed)

Auto-contouring via Automatic Anatomy Recognition of Organs at Risk in Head and Neck Cancer on CT images Contouring of the organs at risk is a vital part of routine radiation therapy planning. For the head and neck (H&N) region, this is more challenging due to the complexity of anatomy, the presence of streak artifacts, and the variations of object appearance. In this paper, we describe the latest advances in our Automatic Anatomy Recognition (AAR) approach, which aims to automatically contour (...) multiple objects in the head and neck region on planning CT images. Our method has three major steps: model building, object recognition, and object delineation. First, the better-quality images from our cohort of H&N CT studies are used to build fuzzy models and find the optimal hierarchy for arranging objects based on the relationship between objects. Then, the object recognition step exploits the rich prior anatomic information encoded in the hierarchy to derive the location and pose for each object

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2018 Proceedings of SPIE--the International Society for Optical Engineering

2. Head and Neck Anatomy: Effect of Focussed Near-Peer Teaching on Anatomical Confidence in Undergraduate Medical Students. (PubMed)

Head and Neck Anatomy: Effect of Focussed Near-Peer Teaching on Anatomical Confidence in Undergraduate Medical Students. To assess the effect of near-peer head and neck anatomy teaching on undergraduates and to quantify the benefit from a focussed teaching course. Near-peer teaching involves colleagues within close seniority and age proximity teaching one another on a specified topic.Small group teaching sessions were delivered to medical students on 3 key areas of ENT anatomy. Participants (...) were given a precourse and postcourse questionnaire to determine the benefit attained from the course.An undergraduate anatomy course taking place at the University of Birmingham Medical School.A total of 30 medical students: 15 preclinical (years 1-2) and 15 clinical (years 3-5) medical students participated from a single institution.A total of 71% of students expressed inadequate teaching of head and neck anatomy in undergraduate curriculum. All students (n = 30) expressed benefit from the course

2018 Journal of Surgical Education

3. Transoral robotic surgery (TORS) for head and neck cancer of unknown primary, oropharyngeal cancer and supraglottic laryngeal cancer

Transoral robotic surgery (TORS) for head and neck cancer of unknown primary, oropharyngeal cancer and supraglottic laryngeal cancer 74 1 Health technology description What is an evidence note? Evidence notes are rapid reviews of published secondary clinical and cost-effectiveness evidence on health technologies under consideration by decision makers within NHSScotland. They are intended to provide information quickly to support time-sensitive decisions. Information is available to the topic (...) an Advice Statement to accompany all evidence reviews. Key points Head and neck cancer of unknown primary ? In small single-arm case series, tumour detection rates for transoral robotic surgery (TORS) tongue base mucosectomy or lingual tonsillectomy in patients with head and neck cancer of unknown primary ranged from 51% to 54%. The extent of prior investigation that defined head and neck cancer of unknown primary varied between studies. No studies were identified that directly compared detection rates

2018 Evidence Notes from Healthcare Improvement Scotland

4. Head and neck imaging

Head and neck imaging 8600 West Bryn Mawr Avenue South Tower – Suite 800 Chicago, IL 60631 www.aimspecialtyhealth.com Appropriate.Safe.Affordable © 2017 ©©©© 2019 AIM Specialty Health 2057-0119 CLINICAL APPROPRIATENESS GUIDELINES ADVANCED IMAGING Appropriate Use Criteria: Imaging of the Head and Neck EFFECTIVE JANUARY 1, 2019 Proprietary Head and Neck Imaging Copyright © 2019. AIM Specialty Health. All Rights Reserved. 2 Table of Contents Description and Application of the Guidelines 4 (...) Administrative Guidelines 5 Ordering of Multiple Studies 5 Simultaneous Ordering of Multiple Studies 5 Repeated Imaging 5 Pre-Test Requirements 6 History 6 Head and Neck Imaging 7 General Information/Overview 7 Scope 7 Technology Considerations 7 Definitions 7 Clinical Indications 9 Congenital and Developmental Conditions 9 Infection and Inflammatory Conditions 9 Sinusitis/rhinosinusitis 9 Infectious disease – not otherwise specified 11 Inflammatory conditions – not otherwise specified 11 Trauma 12 Trauma 12

2019 AIM Specialty Health

5. ACR–ASNR–SPR Practice Parameter for the Performance of Magnetic Resonance Imaging (MRI) of the Head and Neck

a clear understanding and knowledge of the patient’s clinical history, as well as the anatomy and pathophysiology relevant to the MRI examination [6]. The supervising physician must be familiar with the wide spectrum of MRI pulse sequences that can be used in head and neck imaging and their effects on the appearance of the images, including image artifacts. Standard imaging protocols should be established and may be optimized on a case-by-case basis as necessary. These protocols should be reviewed (...) adverse reactions associated with administered medications. The equipment and medications should be monitored for inventory and drug expiration dates on a regular basis. The equipment, medications, and other emergency support must also be appropriate for the range of ages and sizes in the patient population. C. Examination Technique PRACTICE PARAMETER 4 MRI Head and Neck Because of the complexity of the anatomy from the skull base through the neck and the many available imaging choices, clear

2019 American Society of Neuroradiology

6. Arterial Topographic Anatomy Near the Femoral Head-Neck Perforation with Surgical Relevance. (PubMed)

Arterial Topographic Anatomy Near the Femoral Head-Neck Perforation with Surgical Relevance. Knowledge of the vascular supply of the femoral head is crucial for hip-preserving surgical procedures. The critical area for reshaping cam deformity is at the retinacular vessel penetration, an area with ill-defined topographic anatomy. We performed a cadaver study of the extension of the lateral retinaculum near the head-neck junction, distribution of the arterial vascular foramina, and initial (...) intracapital course of these vessels.In 16 fresh proximal parts of the femur without head-neck deformities, the deep branch of the medial femoral circumflex artery was injected with gadolinium for magnetic resonance imaging (MRI) sequences to identify arterial structures.We found a mean number of 4.5 arterial foramina, showing a predominance from 10 to 12 o'clock. The retinaculum extended 20 mm from 1 to 10 o'clock. The surface distance from the cartilage border to the vascular foramina under the synovial

2017 The Journal of Bone and Joint Surgery. American Volume

7. Multi-atlas approach with local registration goodness weighting for MRI-based electron density mapping of head and neck anatomy (PubMed)

Multi-atlas approach with local registration goodness weighting for MRI-based electron density mapping of head and neck anatomy The growing use of magnetic resonance imaging (MRI) as a substitute for computed tomography-based treatment planning requires the development of effective algorithms to generate electron density maps for treatment planning and patient setup verification. The purpose of this work was to develop a method to synthesize computerized tomography (CT) for MR-only radiotherapy (...) % respectively. Dose recalculation comparison showed highly consistent results between plans based on the synthetic vs. the original CTs. The 2D gamma analysis revealed the pass rate of 95.44 ± 2.5 and 99.36 ± 0.71 for 1%/1 mm and 2%/2 mm criteria respectively. Due to local registration weighting, the method is robust with respect to MRI imaging artifacts.We developed a novel image analysis technique to synthesize CT for head and neck anatomy. Novel methods were introduced to accurately register atlas CTs

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2017 Medical physics

8. Using gamma index to flag changes in anatomy during image‐guided radiation therapy of head and neck cancer (PubMed)

Using gamma index to flag changes in anatomy during image‐guided radiation therapy of head and neck cancer During radiation therapy of head and neck cancer, the decision to consider replanning a treatment because of anatomical changes has significant resource implications. We developed an algorithm that compares cone-beam computed tomography (CBCT) image pairs and provides an automatic alert as to when remedial action may be required. Retrospective CBCT data from ten head and neck cancer (...) characteristic analysis showed that the best trade-off in sensitivity and specificity was achieved using gamma criteria of 3 mm DTA and 30 HU difference, and the 80th percentile of the failed-pixel histogram. A sensitivity of 82% and 100% was achieved in the training and validation cases, respectively, with a false positive rate of ~30%. We have demonstrated that gamma analysis of CBCT-acquired anatomy can be used to flag patients for possible replanning in a manner consistent with local clinical practice

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2017 Journal of Applied Clinical Medical Physics

9. Appropriate Use Criteria: Imaging of the Head & Neck

Appropriate Use Criteria: Imaging of the Head & Neck Clinical Appropriateness Guidelines: Advanced Imaging Appropriate Use Criteria: Imaging of the Head & Neck Effective Date: March 12, 2018 Proprietary Date of Origin: 03/30/2005 Last revised: 11/01/2016 Last reviewed: 08/15/2017 Copyright © 2018. AIM Specialty Health. All Rights Reserved 8600 W Bryn Mawr Avenue South Tower - Suite 800 Chicago, IL 60631 P . 773.864.4600 www.aimspecialtyhealth.comTable of Contents | Copyright © 2018. AIM (...) Specialty Health. All Rights Reserved. 2 Table of Contents Description and Application of the Guidelines 3 Administrative Guidelines 4 Ordering of Multiple Studies 4 Pre-test Requirements 5 Head & Neck Imaging 6 CT of the Head 6 CTA/MRA of the Head: Cerebrovascular 16 MRI of the Head 20 Functional MRI (fMRI) Brain 29 PET Brain Imaging 30 CT of the Orbit, Sella Turcica, Posterior Fossa, Temporal Bone, including Mastoids 31 MRI of the Orbit, Face & Neck (Soft Tissues) 34 CT of the Paranasal Sinus

2018 AIM Specialty Health

10. Head and Neck Margin Reduction With Adaptive Radiation Therapy: Robustness of Treatment Plans Against Anatomy Changes. (PubMed)

Head and Neck Margin Reduction With Adaptive Radiation Therapy: Robustness of Treatment Plans Against Anatomy Changes. We set out to investigate loss of target coverage from anatomy changes in head and neck cancer patients as a function of applied safety margins and to verify a cone beam computed tomography (CBCT)-based adaptive strategy with an average patient anatomy to overcome possible target underdosage.For 19 oropharyngeal cancer patients, volumetric modulated arc therapy treatment plans (...) node CTV, the parotid glands, and the larynx. Nevertheless, the average increase in OAR dose was small: maximum of 1.2 Gy (parotid glands, Dmean) for all applied margins. Loss of CTV coverage >2 Gy was found in 1, 3, and 7 of 73 CTVs, respectively. Adaptive intervention in 0-mm plans substantially improved coverage: in 5 of 7 CTVs (in 6 patients) to <2 Gy of initially planned.Volumetric modulated arc therapy head and neck cancer treatment plans with 5-mm margins are robust for anatomy changes

2016 Biology and Physics

11. Perforator anatomy of the radial forearm free flap versus the ulnar forearm free flap for head and neck reconstruction. (PubMed)

Perforator anatomy of the radial forearm free flap versus the ulnar forearm free flap for head and neck reconstruction. The aim of this study was to investigate the vascular anatomy of the distal forearm in order to optimize the choice between the radial forearm free flap and the ulnar forearm free flap and to select the best site to harvest the flap. The radial and ulnar arteries of seven fresh cadavers were injected with epoxy resin (Araldite) and the perforating arteries were dissected

2016 International Journal of Oral and Maxillofacial Surgery

12. Lymphatic Anatomy of the Head and Neck

Lymphatic Anatomy of the Head and Neck Lymphatic Anatomy of the Head and Neck Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 (...) Lymphatic Anatomy of the Head and Neck Lymphatic Anatomy of the Head and Neck Aka: Lymphatic Anatomy of the Head and Neck , Head and Neck Lymphatic Anatomy , Lymphatic Drainage of the Head and Neck II. Anatomy: Images Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Images: Related links to external sites (from Bing) These images are a random sampling from a Bing

2018 FP Notebook

13. Head and Neck Anatomy

Head and Neck Anatomy Head and Neck Anatomy Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Head and Neck Anatomy Head and Neck (...) Anatomy Aka: Head and Neck Anatomy , Head Anatomy II. Components Head Sensory Nose and Pharynx Related Anatomy III. Anatomy Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Head and Neck Anatomy." Click on the image (or right click) to open

2018 FP Notebook

14. Neurologic Anatomy of the Head and Neck

Neurologic Anatomy of the Head and Neck Neurologic Anatomy of the Head and Neck Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 (...) Neurologic Anatomy of the Head and Neck Neurologic Anatomy of the Head and Neck Aka: Neurologic Anatomy of the Head and Neck , Head and Neck Neurologic Anatomy , Peripheral Nerve of Head and Neck II. Components of the Nose s ( ) ( ) ( ) III. Anatomy: Images Neck Lewis (1918) Gray's Anatomy 20th ed (in at or ) s Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed

2018 FP Notebook

15. Vascular Anatomy of the Head and Neck

Vascular Anatomy of the Head and Neck Vascular Anatomy of the Head and Neck Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Vascular (...) Anatomy of the Head and Neck Vascular Anatomy of the Head and Neck Aka: Vascular Anatomy of the Head and Neck , Head and Neck Vascular Anatomy II. Anatomy: Images ral Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Neck Vessels Vessels Lewis (1918) Gray's Anatomy

2018 FP Notebook

16. In vivo nerve identification in head and neck surgery using diffuse reflectance spectroscopy (PubMed)

In vivo nerve identification in head and neck surgery using diffuse reflectance spectroscopy Careful identification of nerves during head and neck surgery is essential to prevent nerve damage. Currently, nerves are identified based on anatomy and appearance, optionally combined with electromyography (EMG). In challenging cases, nerve damage is reported in up to 50%. Recently, optical techniques, like diffuse reflectance spectroscopy (DRS) and fluorescence spectroscopy (FS) show potential

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2018 Laryngoscope investigative otolaryngology

17. Vascular Anatomy of the Medial Femoral Neck and Implications for Surface Plate Fixation. (PubMed)

Vascular Anatomy of the Medial Femoral Neck and Implications for Surface Plate Fixation. To describe the inferior retinacular artery (IRA) as encountered from an anterior approach, to define its intraarticular position, and to define a safe zone for buttress plate fixation of femoral neck fractures.Thirty hips (15 fresh cadavers) were dissected through an anterior (Modified Smith-Petersen) approach after common femoral artery injection (India ink, blue latex). The origin of the IRA from (...) ) as the lesser trochanter. The mean intraarticular length was 20.4 mm (range 11-65, SD 9.1), and the mean extraarticular length was 20.5 mm (range 12-31, SD 5.1).The intraarticular course of the IRA lies within the Weitbrecht ligament between the femoral neck clock-face positions of 7:00 and 8:00. A medial buttress plate positioned at 6:00 along the femoral neck is anterior to the location of the IRA and does not endanger the blood supply of the femoral head. The improved understanding of the IRA course

2018 Journal of Orthopaedic Trauma

18. What you’re not being told about ‘free’ public head and neck cancer screening events

, “No studies have shown that screening would decrease the risk of dying from this disease.” To help foster more thoughtful public discussion on this issue, we recommended journalists explore these three questions as a starting point, and they’re still relevant: What exactly is going to be screened (there’s a lot of anatomy in the combined oral-throat-head-neck region) and how? Is there any evidence that such screening saves lives? Are there any widely adopted medical guidelines on such screening (...) What you’re not being told about ‘free’ public head and neck cancer screening events What you're not being told about 'free' public head and neck cancer screening events - HealthNewsReview.org Note to our followers: Our nearly 13-year run of daily publication of new content on HealthNewsReview.org came to a close at the end of 2018. Publisher Gary Schwitzer and other contributors may post new articles periodically. But all of the 6,000+ articles we have published contain lessons to help you

2017 HealthNewsReview

19. Radiation-Induced Sarcoma of the Head and Neck: A Review of the Literature (PubMed)

Radiation-Induced Sarcoma of the Head and Neck: A Review of the Literature In the last decades, radiotherapy (RT) has become one of the cornerstones in the treatment of head and neck (HN) malignancies and has paralleled an increase in long-term patient survival. This lead to a concomitant increase in the incidence of radiation-induced sarcomas (RIS) of the irradiated field, with an annual rate up to 0.17%. The new techniques of irradiation do not seem to influence the risk of RIS of the HN (...) , while radiological findings are not pathognomonic and able to differentiate them from other neoplastic entities. Given the highly aggressive behavior of RISHN and its poor sensitivity to chemotherapy, radical surgery is the most important prognostic factor and the only curative option at present. Nevertheless, the anatomy of the HN district and the infiltrative nature of RIS do not always allow radical intervention. Therefore, a wise integration with systemic therapy and, when feasible, re

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2018 Frontiers in oncology

20. In-vivo optical imaging in head and neck oncology: basic principles, clinical applications and future directions (PubMed)

In-vivo optical imaging in head and neck oncology: basic principles, clinical applications and future directions Head and neck cancers become a severe threat to human's health nowadays and represent the sixth most common cancer worldwide. Surgery remains the first-line choice for head and neck cancer patients. Limited resectable tissue mass and complicated anatomy structures in the head and neck region put the surgeons in a dilemma between the extensive resection and a better quality of life (...) for the patients. Early diagnosis and treatment of the pre-malignancies, as well as real-time in vivo detection of surgical margins during en bloc resection, could be leveraged to minimize the resection of normal tissues. With the understanding of the head and neck oncology, recent advances in optical hardware and reagents have provided unique opportunities for real-time pre-malignancies and cancer imaging in the clinic or operating room. Optical imaging in the head and neck has been reported using

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2018 International journal of oral science

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