SPHP

Radiology Protocols

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  • WELCOME
  • BODY MR
    • Liver
    • Hemochromatosis
    • Pancreas
    • Cholangio / PSC
    • MRCP
    • Panc-cyst F/U
    • Secretin MRCP
    • Liver/Panc/MRCP
    • Renal mass
    • Urogram
    • Adrenal mass
    • Female pelvis C+
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    • Cervical CA
    • Abd/pel GYN
    • Prostate MR
    • Urethral tic
    • Bladder
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    • Enterography
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    • Perianal fistula
    • Mediastinal mass
    • Body wall mass
    • Sternum
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    • XRT Planning Pelvis
  • BODY CT
    • CT Abd/Pel C+
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    • PEDS CT A/P
    • Stone CT C-
    • Liver CT C+
    • Pancreas CT C+
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    • Renal Mass CT C+
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    • Stone Compos.
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  • CHEST CT
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  • CTA
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    • Mesenteric CTA
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  • COMBINED CT
    • CT CAP C+
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    • CT Ch/Abd C+
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  • MSK MR LOWER-EXT
    • Bony Pelvis
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    • Fore/Midfoot C+
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  • MSK MR UPPER-EXT
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    • Shoulder C+
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  • NEURO MR
    • Routine Brain
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    • Cervical-Spine C+
    • TMJs
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    • Lumbar Plexus
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    • Thorac-Spine-C+
    • Soft Tissue Neck
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  • NEURO CT
    • Head C-
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  • ULTRASOUND
    • REPORTING
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  • CARDIAC MR
    • INDICATIONS
    • Routine w/ T2
    • Aortic valve
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    • Cardiac mass
    • Noncompaction
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    • LV function only
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    • Real-time
  • BREAST IMAGING
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    • Breast US
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  • NUCLEAR MEDICINE
    • Bone Scan
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  • RADIOGRAPHY
    • Upper Extremity
    • Lower Extremity
    • Thoracic/Chest
    • Spine
    • Abdomen
    • Skull/Head
    • Skeletal Survey
  • DEXA
    • Adult
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  • MISC
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  • Reference
    • Incidental Findings
      • Panc Cyst
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      • Renal Lesion
      • Adnexal Cyst
      • Spleen
      • Gallbladder/Biliary
      • Thyroid
      • Thyroid nodule
      • Lymph Node
      • Vascular
    • Cardiac MR
      • Order form
      • Normal values
      • Normal values 2
      • Normal values 3
      • Iron Quant
      • 17 segment model
      • CA territories
      • Mitral regurg
      • ARVC criteria
      • Left Atrium
      • CMR Guides
  • MR Tips
    • Cardiac
      • Routine heart
      • Aortic valve
      • Right heart / PA
      • Pericard dynamic
      • TWIST angio
      • Iron quant
      • Gating
      • 3D trueFISP
    • Body MR
      • Breath holding
      • FOV
  • Contrast Guidelines
    • CT Contrast
    • MR Contrast

PERIANAL/PERIRECTAL FISTULA OR ABSCESS
(last updated 11/13/2020, last reviewed 02/10/2022)

INDICATION:  Perianal fistula, Crohn's.  

SEQUENCES


Ax HASTE whole pelvis

Cor HASTE whole pelvis

Ax fat sat TSE T2 small FOV rectum, anus, perineum  (small FOV ~22cm)

Cor fat sat TSE T2 small FOV rectum, anus, perineum

Sag fat sat TSE T2 small FOV rectum, anus, perineum

Ax T1 small FOV rectum, anus, perineum

Ax 3D VIBE (fat sat) small FOV rectum, anus, perineum pre

Ax 3D VIBE (fat sat) small FOV rectum, anus, perineum post

Cor 3D VIBE (fat sat) small FOV rectum, anus, perineum post

Sag 3D VIBE (fat sat) small FOV rectum, anus, perineum post       

Subtraction images

 

  ST. JAMES UNIVERSITY MR CLASSIFICATION

(imaging)

 0
 Normal
1
 Simple linear intersphincteric fistula
 2
 Intersphincteric fistula with intersphincteric abscess or secondary tract
 3
 Trans-sphincteric fistula
  4
 Trans-sphincteric fistula with abscess or secondary tract within ischioanal or ischiorectal fossa
 5
 Supralevator or translevator disease 
LINK TO RADIOGRAPHICS ARTICLE

Grade 1

Grade 2

Grade 3

Grade 4

Grade 5


Parks Classification (surgical)

A  intersphincteric 

B  transsphincteric

C  suprasphincteric

D  extraspincteric