this prsentation incluses HRCT temportal bone cross sectional anatomy images axial saggital and coronal with labelled diagram. This presentation help alot for radiology resident. Thanks.
Ct anatomy of paranasal sinuses( PNS) pk.pdf pptDr pradeep Kumar
This presentation includes cross sectional anatomy like axial,saggital and coronal images of paranasal sinuses and most important variation of paranasal sinus.This help alot. Must read topic for radiology resident. Thanks
Ct anatomy of paranasal sinuses( PNS) pk.pdf pptDr pradeep Kumar
This presentation includes cross sectional anatomy like axial,saggital and coronal images of paranasal sinuses and most important variation of paranasal sinus.This help alot. Must read topic for radiology resident. Thanks
Lateral skull base anatomy and applied science by Dr, bomkar bamBomkar Bam
the lateral skull base is complex anatomy that is usually students finds difficult to understand. here concise literature is made to understand the skull base more easily.
This presentation deals with the inside of the skull (cranial cavity) and description of some separate bones. There is another presentation “Skull - the normas” that describes norma verticalis, occipitalis, lateralis, frontalis and basalis and is necessary to complete the objectives.
Objectives
Identify the features of the major bones forming the cranial cavity according to normas and separate bones.
Describe the major sutures.
Describe the structure of the flat bones forming the skull and their blood supply.
Discuss ossification of the skull and the changes that occur during postnatal development.
Locate important bony surface landmarks.
Radiology Spotters collection by Dr Pradeep. Nice collection Radiology spotters mixed collection ppt made by or collected by Dr. Pradeep, this is a collection of confusing spotter and very important spotter commonly asked in exams, our references is radiopaedia, learning radiology and Aunt Minnie.. Thanks
Radiology Spotters mixed Bag Collection for post graduates student .PPTDr pradeep Kumar
Radiology Spotters collection by Dr Pradeep. nice collection of radiology spotter made by or collected by Dr. Pradeep, this is a collection of confusing spotter and very important spotter commonly asked in exams, our references is radiopaedia, learning radiology and Aunt Minnie.. Thanks.
Skeletal dysplasia musculoskeletal radiology is very concise and it cover the all-important topic of skeletal dysplasia with their characteristic feature and radiological findings with a proper radiographic image. Starting from classification and approach. It includes nosology classification. Thanks.
Abnormal abdominal CT is best powerpoint presentation for radiologist, radiology resident and gastroenterologist, this include pancreatitis, all abdominal trauma grading with systemic manner. Thanks
Role of hrct in interstitial lung diseases pk uploadDr pradeep Kumar
Role of hrct in interstitial lung diseases pk , This is best powerpoint slides presentation including Latest American thoracic society and fleishners society guidelines . this includes radiographic images a well HRCT chest findings of various ILD. This will help alot for md pg radiology resident and radiologist. Thanks
Solitary pulmonary nodules radiology ppt is very good power point presentation from various source radiology assistant and latest guidelines. this power-point also includes many sign with multiple xray, ct and mri images. this will help alot. Thanks.
Jaw lesion radiology ppt ppt . This powerpoint presentation includes important anatomy, radiographs and important pathology of jaw lesion with its imaging feature as well as its Xray ct mri image. This will help alot. this will help for radiology resident as well as ent resident and event dentist.
Skull base tumors & perineural spread radiology pptDr pradeep Kumar
Skull base tumors & perineural spread radiology ppt This powerpoint presentation includes important anatomy and important pathology of skull base lesion with its imaging feature as well as its ct mri image. This will help alot. this will help for radiology resident as well as ent .
Salivary gland imaging radiology ppt . This powerpoint presentation includes important anatomy and important pathology of salivary gland with its imaging feature as well as its ct mri image. This will help alot. this will help for radiology resident as well as ent .
MRI anatomy of ankle radiology ppt pk is nice presentation that covers cross sectional anatomy as well as relevant anatomy from standard radiology book like CT MRI whole body by Hagga . cross section of mri is taken from mrimaster.com. This will help for radiology resident as well radiographers.
Congenital neck mass radiology pk final is very good power point presentation for radiologist, radiology resident, student and even ent surgeon or resident doctor.. Every disease of neck lesion is properly describe with multi usg, ct and MRI images. this will help a lot. thanks.
Imaging of paranasal sinuses (including anatomy and varaints)pk1 pdf pptDr pradeep Kumar
This is very good powerpoint presentation of imaging anatomy and variants of paranasal sinuses and imaging pathology as well as multiple pathological imaging findings and images.it will helps for radiologist and radiology resident and even ent resident. our references is CT and mri whole body by Haaga and various internet sources. THANKS.
Important radiological classification of fracture and AVNDr pradeep Kumar
This is Important radio-logical classification of fracture and AVN, I made this from various references like radiopaedia and radiology website , It will help for radiology resident, radiologist and even orthopedics resident. Thanks.
This slide includes various CT protocol , liver ct triple phase protocol , with important findings, this power-point presentation help a lot for radiologist, radiology resident, radiographers, technician. Thanks.
this power-point presentation includes knee and ankle MRI anatomy with cross sectional axial saggital and coronal views images. this also includes some pathology. this slide will help a lot for radiologist, radiographers, technician radiology resident, thanks.
This presentation include biliary anatomy ,indication, contraindication post op care of percutaneus transhepatic biliary drainage with important technique. and advantage and disadvantage of different technique. This is important for radiologist, radiographers, intervention radiologist radiology resident. Thanks
This power-point presentation is very important for radiology resident radiologist and radiographers and technician. this includes principles, technique , biological effects of radiation and how to protect, whats should normal radiation dose with latest update. This slide also includes ALARA PRINCIPLE thanks.
this power-point slide presentation includes lots of information like how MRI coil works. what is shimming, magnet, fringe, and design of mri coil and also magnet. this will help a lot for radiologist and technician radiographers.. thanks.
Barium meal ppt presentation is very important for radiology resident , radiologist and radiographers. this slide contents lots of barium image and technique, position, indication and modification and lots of information. this presentation help alot thanks .
Sellar, Suprasellar and Pineal tumor final pk .pptDr pradeep Kumar
this is very good presentation slide for radiologist and radiology resident. our references is authentic and most are from osborn brain imaging 2nd edition. This deal with sellar, suprasellar and pineal tumor . This help alot. thanks
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
4. Radiographic positions of mastoids
The mastoid process is a part of the temporal bone which is also comprised of tympanic,
petrous and squamous parts. Accordingly, examination of the mastoid can be possible
using the following projections:
Law view: The X-ray beam is directed at a 15 degree oblique plain cephalocaudally while
the skull's sagittal plane is parallel to the X-ray film.
Law view: The X-ray beam is directed at a 15 degree oblique plain
cephalocaudally while the skull's sagittal plane is parallel to the X-ray film.
5. Stenver's view: It is also called an Axio-anterior oblique posterior view. The X-ray
beam is directed at a 14 degree angle caudally and the head faces the film with
slight flexion and rotation at an angle of 45 degrees to the oppositeside.
6. Transorbital view: (posterioanterior and anteroposterior): The X-ray
beam is directed either postero anteriorly or anteroposteriorly along
the orbito-meatal line at a 90 degree angle to the film.
7. Town's view: It is an anteroposterior view with a 30 degree fronto-occipital axial tilt.
It helps in visualization of the temporal bones of, arcuate eminence, mastoid antrum,
superior semicircular canal, internal auditory meatus, cochlea and external auditory
meatus. It is also valuable in the diagnosis of apical petrositis and acoustic neuroma.
8. Axial anatomy from inferior to superior
At the most inferior level we see the facial nerve passing inferiorly to finally reach
the stylomastoid foramen (not shown in this image).
The carotid artery is shown within the carotid canal. Also at this
level is the top of the jugular bulb.
Coronal anatomy
The petrous bone is positioned in an oblique orientation from posterolateral
to anteromedial.
As a result most structures will be sectioned obliquely on coronal images.
The following coronal images go from anterior to posterior.
First we will see the tympanic membrane with the ossicles, followed
by the cochlea, antrum and semicircular canals.
Finally the most posterior image will show the point where the facial nerve exits the
temporal bone at the stylomastoid foramen.
14. Petrous Apex.
Osseous fascial canal
Inferior handle of malleus
Jugular
foramina.
Jugular Bulb.
Tendon for Tensor tympani
15. Tendon for Tensor tympani
Apical turn of the cochlea
Basal turn of the cochlea
Handle of malleus
Osseous fascial canal
16. Handle of malleus
Long process of Incus
Osseous fascial canal
3rd portion
Tendon for Tensor tympani
Cochlear process
Basal turn of cochlea
Aqueduct of cochlea
Promontory
17. Head of malleus
Wall for middle ear
Body of Incus
Osseous fascial
canal (3rd portion)
Tendon for Tensor tympani
Cochlear process
Round window
Pyramidal eminence
49. The internal auditory canal:
-Has three parts: the internal acoustic meatus (medial opening), the
canal (an average of 8 mm) and the fundus, of irregular shape
(modulates the passage of the VII and VIII cranial nerves).
-Nervous contents: the facial nerve (the largest in size) and the
cochleo-vestibular nerve that divides into the cochlear nerve and the
vestibular nerve which further divides itself into the superior
(innervates the utricle and the ampulla of the superior and lateral
SCC), and the inferior branches (innervates the saccule and the
ampulla of the posterior SCC).
The singular nerve (or the posterior ampullary nerve) has its proper
canal, the singular canal, in the postero-inferior quadrant of the
fundus that can be often be observed with 3T imaging.
-Vascular content: arterial by the labyrinthine artery and venous
with three drainage pathways (internal auditory vein, vein of
cochlear aqueduct and vein of vestibular aqueduct).
The inner ear MR anatomy.
50.
51.
52.
53. Axial section through the inner auditory canal (IAC) and the
labyrinthe with visualization of the cochlear and inferior vestibular
nerves. The utricular macula is also well depicted.
54. Anterior coronal section through the IAC. Outline of the facial nerve in
its complete cisternal course, the cochlear nerve is only partially viewed.
55. Posterior coronal section through the IAC. Vestibular nerve
division and vestibular ganglion (of Scarpa) are visualized.
56. Appearance variant of the vestibular nerve with inferior vestibular division into
the saccular nerve (that innerves the saccule) and the posterior ampullary nerve (for
the ampulla of the posterior semicircular canal). The singular canal is also frequently
observed, not shown in this figure. Coronal and sagittal sections through the IAC.
57. Sagittal seriate sections of the IAC from medial (left), showing the
pontocerebellar cistern, to lateral (right), showing the fundus and inner ear structures.
58. Cochlear nerve at the fundus of the IAC and its passage via the modiolus
to the cochlea in an oblique sagittal section. This finding is of clinical
importance when studying the inner ear malformations.
59. Heavily T2 coronal section respective to the IAC. Vestibular and cochlear
structures are seen, note the utricular macula and spiral lamina.
60. Sagittal section respective to the IAC through the inner ear in a 3D
Heavily T2 sequence. This section is also orthogonal to the macula of
the utricle and unfolds partially the cochlea.
61. Oblique coronal section through the anterior labyrinth
and fundus of the IAC, 3D Heavily T2 sequence.
62. FLAIR sequence in the axial plane four hours after Gd intravenous
injection, the saccule and part of the utricle are visualized.
63. Axial FLAIR Gd sequence through the utricle, the saccule is partially visualized.
64. Heavily T2 in the plane of the lateral semicircular canal (oblique
axial). The ampulla and its ampullary crest (low signal) are seen.
65. FLAIR Gd sequence section in the lateral SCC plane, passing through the utricle.
66. Section in the plane of the superior semicircular canal (plane of
Pöschl, sagittal to the petrous bone), with heavily T2 sequence.
67. Section in the same plane of the superior semicircular canal with FLAIR Gdsequence.
68. T2 sequence in the plane of the posterior SCC (plane of Stenver,
coronal to the petrous bone). Notice the common part of the
superior and posterior semicircular canals, i.e. the common crus.
69. FLAIR and Heavily T2 sequences, sections in the coronal plane. Notice the
position of the utricular macula (T2 sequence) relative to the utricle (FLAIR).
71. Planes of scanning
Axial
30 Degrees to anthropological base line
Parallel to lateral SCC.
Best displays inner & middle ear.
Sections parallel to the hard Palate
Direct Coronal plane
patient head extended in prone or supine with 105 degree
plane is perpendicular to the lateral SCC
Sections are parallel to posterior wall of maxillary sinus
Saggital plane
2
105
0
30
72. Temporal Bone
3
1.Squamous
Lateral wall of MCF
2.Petrous
Encloses Labyrinth
3.Mastoid
Mastoid air cells
4.Tympanic
Forms bony EAC
5. Styloid
Forms Styloid process
77. 8
1)PROMOTARY- Round bulge produced by basal turn of cochlea
2)FENESTRA OVALIS -Lies postero- superior to promontory & connects
middle ear with vestibule and is occupied by footplate of stapes
3)FENESTRA ROTUNDA- Posteroinferiorly to oval window & connects ME
with scala tympani of cochlea.
4)PROMINENCE OF FACIAL NERVE CANAL -Runs backwards just above the
oval window to reach the lower margin of aditus.
Medial wall of middle ear:
78. 9
ANTERIOR WALL
1)Superior-opening of
canal for tensor tympani.
2) Middle –opening of
auditory tube.
3)Inferior-thin plate of
bone separating from
carotid canal.
POSTERIOR WALL
1) Aditus to mastoid
2) Fossa incudis-lodges the short process of incus.
3) Pyramidal eminence-attachment for stapedial tendon.
79. • The scutum is normally thin and sharply edged;
and is an important bony landmark as it is one of
the bony structures eroded early by a
cholesteatoma.
•
• Scutum, the tympanic membrane and the tympanic
annulus are best demonstrated on coronal images
at the mid bony portion of the external auditory
canal.
80.
81. • Cochlea
• The perilymphatic space of
vestibule is continuous with
the cochlea anteriorly.
• The cochlea is a conical
structure,extends for 2.5-
2.75turns
• Promontory
(P) is the projection raised by
the basal turn of cochlea.
• The basal turn opens into the
round window niche
Coronal
Middle
turn
Axial
82. • The vestibule
consists of the
superior utricle and
the inferior saccule.
• The semicircular
ducts open into the
utricle.
83. • The cochlear aqueduct
contains the
perilymphatic duct
while the vestibular
aqueduct contains the
endolymphatic duct
and the intraosseous
portion of the
endolymphatic sac.
86. • The facial nerve, from the lateral end of the
internal auditory canal enters the petrous bone as
the labyrinthine portion running anterolaterally,
superior to the cochlea and towards the anterior
genu (geniculate ganglion).
• Then it makes an abrupt turn to run
posterolaterally along the medial attic wall
beneath the lateral semicircular canal as the
tympanic portion towards the posterior genu.
• And finally turns inferiorly as the descending
(mastoid) portion to exit at the stylomastoid
foramen.
87. How to identify Facial nerve canal?
• Axial: at level of
Epitympanum, it is seen as a
linear structure medial to
ice-cream cone.
ronal: At level of OW,it is
seen as a round structure
with bony outline between
OW inferiorly and Lateral
Semicircular canal
(LSC)superiorly.
•CoronaCl: oA
88. 46
Axial sections-caudal to cephalad
1.Axial hypotympanic-jugular foramen level
1)carotid canal & jugular
Fossa forming snowman
Configuration
2)opening of auditary
Tube
3)petrooccipital fissure
4)TM joint and mandibular
Condyle
92. 50
3.Axial mid tympanic level
1)neck of malleus ,long process of
incus and stapes
2)semicanal for tensor
tympani
3) 3 turns of cochlea
4)facial nerve canal