This video deals with the anatomy of the pelvis and perineum in transverse anatomical and axial CT sections. The video begins with a transverse anatomical section at the level of the iliac crest and continues down to the perineum. The anatomical structures in the sections are linked to diagrams and plastic models for comparison.
The anatomical sections are arranged to match the orientation of CT sections to provide a better understanding of the imaging anatomy of the pelvis. The arrangement of pelvic and perineal structures is followed in (18) serial transverse anatomical sections of the pelvis and perineum and compared with (6) representative axial CT sections at different levels.
00:00 Introduction
00:30 Section 1 level of L4
03:47 Section 2 level of L5/S1
5:00 Axial CT 1 level of L5/S1
06:03 Section 3 level of S1
07:20 Section 4 Sacroiliac joint
08:43 Axial CT 2 level of ASIS
09:32 Section 5 ovarian fossa
10:46 Section 6, the lower part of the sacrum
11:54 Section 7 fundus of the uterus
12:25 Axial CT 3 uterus
12:43 Section 8 upper part of the acetabulum, round ligament of the uterus
13:51 Axial CT 4 uterus, round ligament of the uterus
14:04 Section 9 acetabulum, rectouterine pouch of Douglas
14:31 Section 10 rectal valve of Houston
15:10 Section 11 ampulla of the rectum, cervix, ischial spine, coccygeus muscle
16:18 Section 12 vault of the vagina
16:34 Section 13 urinary bladder, ureter, lateral fornix, water under the bridge
18:32 Section 14 intramural ureter, puborectalis, acetabular labrum, ischioanal fossa
20:36 Axial CT 5 ischioanal fossa
20:50 Section 15 pubic symphysis
21:38 Section 16 ischial tuberosity, urethra, pudendal (Alcock's) canal
22:27 Axial CT 6 pubic symphysis, obturator foramen
22:46 Section 17 crura of the clitoris, anal canal
23:20 Section 18 labium majus, vestibule of the vagina
Presented and edited by Akram Jaffar, Ph.D.
After completion of this video session, it is expected that you will be able to identify the anatomical features:
Vessels:
common iliac artery, right common iliac vein, left common iliac vein, external iliac artery and vein, internal iliac vessels, femoral artery and vein, obturator artery, internal pudendal artery, mesenteric vessels.
Viscera:
ileum, cecum, appendix, descending colon, sigmoid colon, rectum, anal canal, ureter, urinary bladder, uterus, cervix, fundus, vagina, fornix, urethra, round ligament of the uterus, ovary, mesentery of the small intestine, greater omentum, visceral fat, retroperitoneum, crus of the clitoris, vestibule of the vagina, isthmus of the uterus, broad ligament, cornu of the uterus.
Musculoskeletal structure:
iliac crest, sacrum, coccyx, iliac fossa, superior ramus of the pubis, body of the pubis, ischiopubic ramus, ischial spine, ischial tuberosity, obturator foramen, acetabulum, head of the femur, neck of the femur, greater trochanter of the femur, anterior superior iliac spine, the body of a lumbar vertebra, zygapophyseal joint, transverse process, spinous process, ligament of the head of the femur, acetabular labrum, interosseous sacroiliac ligament, pubic symphysis, sacroiliac joint, hip joint, gluteus medius, gluteus maximus, gluteus minimus, iliacus, psoas, rectus abdominis, linea alba, external oblique, internal oblique, transversus abdominis, subcutaneous fat, pectineus, gracilis, obturator internus, obturator externus, levator ani, coccygeus, puborectalis, erector spinae.
The anatomical sections are selected from the Visible Human Project. For more information about this project refer to: [ Ссылка ]
The axial CT sections are courtesy of Michael P Hartung, [ Ссылка ] Radiopaedia.org. From the case [ Ссылка ]
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