{"id":4453,"date":"2025-10-31T16:17:42","date_gmt":"2025-10-31T16:17:42","guid":{"rendered":"https:\/\/protocols.nwforums.com\/index.php\/perianal-fistula-mri-1-5t\/"},"modified":"2026-01-07T20:12:44","modified_gmt":"2026-01-07T20:12:44","slug":"perianal-fistula-mri-1-5t","status":"publish","type":"page","link":"https:\/\/protocols.nwforums.com\/index.php\/perianal-fistula-mri-1-5t\/","title":{"rendered":"Perianal Fistula MRI 1.5T"},"content":{"rendered":"
\n
\n<\/div>\n
\nPrint<\/a><\/p>\n<\/div>\n<\/div>\n
\n

Instructions And Patient Preparation<\/h3>\n
\n
Instructions<\/dt>\n
• Center at pubic symphysis\/greater trochanters to include the entire anus
• Oblique axis refers to the sphincter<\/dd>\n
Common Indications<\/dt>\n
Perianal fistula, abscess, rectovaginal\/rectovesical fistula<\/dd>\n
Position<\/dt>\n
Supine<\/dd>\n
Coil<\/dt>\n
32 channel Torso, GEMS Body array, or Air coil<\/dd>\n
Landmark<\/dt>\n
Iliac Crest<\/dd>\n<\/dl>\n<\/section>\n
\n

Contrast Agent Parameters<\/h3>\n\n\n\n\n\n\n\n
Contrast Agent<\/th>\nDose<\/th>\nInjection Rate<\/th>\nDose Timing Method and Scan Delay<\/th>\n<\/tr>\n<\/thead>\n
Gadopiclenol (VUEWAY)<\/td>\n0.05 mmol\/kg up to a calculated volume of 10 mL<\/td>\n2 mL\/sec<\/td>\nPre – 1 min<\/td>\n<\/tr>\n
Saline Flush<\/td>\n50 mL<\/td>\n2 mL\/sec<\/td>\nImmediately following gadolinium<\/td>\n<\/tr>\n
Comments<\/td>\n—<\/td>\nRectum and perineum<\/td>\nRectum to perineum<\/td>\nRectum to perineum<\/td>\nRectum to perineum<\/td>\nPre, 1 min,
No breath hold<\/td>\n		Post<\/td>\nOptional:
For surg. material<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n
\n

Imaging Parameters<\/h3>\n\n\n\n\n\n\n\n\n
Scan Description<\/th>\n3PL
LOCALIZER
SSFSE<\/th>\n		SAGITTAL
T2<\/th>\n		AXIAL
OBLIQUE
w\/wo Fat Sat
T2 FSE<\/th>\n		CORONAL
OBLIQUE
w\/wo Fat Sat
T2 FSE<\/th>\n		AXIAL
T2 CUBE
Fat Sat<\/th>\n		Post
OBLIQUE
AXIAL
T1 3D<\/th>\n		Post
OBLIQUE CORONAL
T1 3D<\/th>\n		AXIAL
In\/Out Phase<\/th>\n<\/tr>\n
 <\/th>\n <\/th>\n\nView Image<\/a>\n<\/th>\n\nView Image<\/a>\n<\/th>\n\nView Image<\/a>\n<\/th>\n\nView Image<\/a>\n<\/th>\n\nView Image<\/a>\n<\/th>\n\nView Image<\/a>\n<\/th>\n <\/th>\n<\/tr>\n<\/thead>\n
Mode<\/td>\n—<\/td>\n2D<\/td>\n2D<\/td>\n2D<\/td>\n3D<\/td>\n3D<\/td>\n3D<\/td>\n3D<\/td>\n<\/tr>\n
Pulse Sequence<\/td>\nSSFSE<\/td>\nFRFSE-XL<\/td>\nFRFSE-XL<\/td>\nFRFSE-XL<\/td>\nCUBE T2<\/td>\nLAVA-Flex<\/td>\nLAVA-Flex<\/td>\nFAST SPGR<\/td>\n<\/tr>\n
Imaging Options<\/td>\nEC, SEQ, SS,
FAST, ARC<\/td>\n		FC, TRf,
FAST, FR<\/td>\n		FC, TRf,
FAST, FR<\/td>\n		NPW, FC, TRf,
FAST, FR<\/td>\n		EDR, FAST, FR,
ZIP512, ZIP2, ARC<\/td>\n		EDR, ZIP512,
ZIP2, FAST<\/td>\n		EDR, ZIP512, ZIP2, FAST, NPW<\/td>\nEDR, FAST<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n
\n

Scan Parameters<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n
Scan Description<\/th>\n3PL
LOCALIZER
SSFSE<\/th>\n		SAGITTAL
T2<\/th>\n		AXIAL
OBLIQUE
w\/wo Fat Sat
T2 FSE<\/th>\n		CORONAL
OBLIQUE
w\/wo Fat Sat
T2 FSE<\/th>\n		AXIAL
T2 CUBE
Fat Sat<\/th>\n		Post
OBLIQUE
AXIAL
T1 3D<\/th>\n		Post
OBLIQUE CORONAL
T1 3D<\/th>\n		AXIAL
In\/Out Phase<\/th>\n<\/tr>\n
 <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n<\/tr>\n<\/thead>\n
TE<\/td>\n90<\/td>\n90<\/td>\n90<\/td>\n90<\/td>\nDef<\/td>\nMin Full<\/td>\nMin Full<\/td>\n#TEs 2
TE 1 Min (2.2)
TE 2 4.4<\/td>\n<\/tr>\n
TR<\/td>\nMin<\/td>\nMin<\/td>\n3500<\/td>\n3500<\/td>\n2500<\/td>\nDef<\/td>\nDef<\/td>\nDef (4)<\/td>\n<\/tr>\n
Flip Angle<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n15<\/td>\n15<\/td>\n—<\/td>\n<\/tr>\n
ETL<\/td>\n—<\/td>\n—<\/td>\n21<\/td>\n21<\/td>\n120<\/td>\n—<\/td>\n—<\/td>\n70<\/td>\n<\/tr>\n
Bandwidth<\/td>\n62<\/td>\n—<\/td>\n31<\/td>\n31<\/td>\n62<\/td>\n62<\/td>\n62<\/td>\n—<\/td>\n<\/tr>\n
SAT<\/td>\n—<\/td>\n62<\/td>\nChem Sat Fat<\/td>\nChem Sat Fat<\/td>\nChem Sat Fat<\/td>\n—<\/td>\n—<\/td>\n31<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n
\n

Acquisition Parameters<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
Scan Description<\/th>\n3PL
LOCALIZER
SSFSE<\/th>\n		SAGITTAL
T2<\/th>\n		AXIAL
OBLIQUE
w\/wo Fat Sat
T2 FSE<\/th>\n		CORONAL
OBLIQUE
w\/wo Fat Sat
T2 FSE<\/th>\n		AXIAL
T2 CUBE
Fat Sat<\/th>\n		Post
OBLIQUE
AXIAL
T1 3D<\/th>\n		Post
OBLIQUE CORONAL
T1 3D<\/th>\n		AXIAL
In\/Out Phase<\/th>\n<\/tr>\n
 <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n<\/tr>\n<\/thead>\n
MATRIX freq<\/td>\n320<\/td>\n256<\/td>\n320<\/td>\n320<\/td>\n256<\/td>\n280<\/td>\n280<\/td>\n256<\/td>\n<\/tr>\n
MATRIX phase<\/td>\n224<\/td>\n224<\/td>\n224<\/td>\n224<\/td>\n256<\/td>\n224<\/td>\n224<\/td>\n192<\/td>\n<\/tr>\n
NEX<\/td>\n1<\/td>\n1<\/td>\n2<\/td>\n2<\/td>\n1<\/td>\n1<\/td>\n1<\/td>\n1<\/td>\n<\/tr>\n
Phase FOV<\/td>\n1<\/td>\n1<\/td>\n1<\/td>\nNPW<\/td>\n1<\/td>\n1<\/td>\n1<\/td>\n0.75<\/td>\n<\/tr>\n
Freq Direction<\/td>\n—<\/td>\nS\/I<\/td>\nR\/L<\/td>\nS\/I<\/td>\nR\/L<\/td>\nR\/L<\/td>\nS\/I<\/td>\nR\/L<\/td>\n<\/tr>\n
Accel<\/td>\nPh 2<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\nPh 2, Sl 2<\/td>\n—<\/td>\n—<\/td>\nPh 2, SI 2<\/td>\n<\/tr>\n
Adv CV<\/td>\n1, 240, 1<\/td>\n—<\/td>\nFat Sat Eff 1
Cl annefact 1<\/td>\n		Fat Sat Eff 1
Cl annefact 1<\/td>\n		—<\/td>\nUser CV
Turbo 2
Centric 1<\/td>\n		User CV
Turbo 2
Centric 1<\/td>\n		—<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n
\n

Scanning Range<\/h3>\n\n\n\n\n\n\n\n\n\n\n
Scan Description<\/th>\n3PL
LOCALIZER
SSFSE<\/th>\n		SAGITTAL
T2<\/th>\n		AXIAL
OBLIQUE
w\/wo Fat Sat
T2 FSE<\/th>\n		CORONAL
OBLIQUE
w\/wo Fat Sat
T2 FSE<\/th>\n		AXIAL
T2 CUBE
Fat Sat<\/th>\n		Post
OBLIQUE
AXIAL
T1 3D<\/th>\n		Post
OBLIQUE CORONAL
T1 3D<\/th>\n		AXIAL
In\/Out Phase<\/th>\n<\/tr>\n
 <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n <\/th>\n<\/tr>\n<\/thead>\n
FOV<\/td>\n48<\/td>\n36<\/td>\n26<\/td>\n26<\/td>\n26<\/td>\n28<\/td>\n28<\/td>\n36<\/td>\n<\/tr>\n
Slice Thickness<\/td>\n8<\/td>\n2.4<\/td>\n2.4<\/td>\n2.4<\/td>\n1.8<\/td>\n2.6<\/td>\n2.6<\/td>\n5<\/td>\n<\/tr>\n
Spacing<\/td>\n0<\/td>\n.2<\/td>\n.2<\/td>\n.2<\/td>\n0<\/td>\n0<\/td>\n0<\/td>\n1<\/td>\n<\/tr>\n
Number of Slices<\/td>\n21 Slices<\/td>\nSlices PRN<\/td>\n14 Slices\/acq<\/td>\n13 Slices\/acq<\/td>\n—<\/td>\n80 Slices<\/td>\n80 Slices<\/td>\n70 Locs PRN<\/td>\n<\/tr>\n
Approx. Scan Time<\/td>\n0:30<\/td>\n5:00 ±<\/td>\n5:00 ±<\/td>\n5:00 ±<\/td>\n5:00 ±<\/td>\n1:30<\/td>\n1:30<\/td>\n0:23 per HB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Print Instructions And Patient Preparation Instructions • Center at pubic symphysis\/greater trochanters to include the entire anus • Oblique axis refers to the sphincter Common Indications Perianal fistula, abscess, rectovaginal\/rectovesical fistula Position Supine Coil 32 channel Torso, GEMS Body array, or Air coil Landmark Iliac Crest Contrast Agent Parameters Contrast Agent Dose Injection Rate Dose […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[46,43,54],"tags":[],"class_list":["post-4453","page","type-page","status-publish","hentry","category-1-5t","category-ge","category-pelvis"],"_links":{"self":[{"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/pages\/4453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/comments?post=4453"}],"version-history":[{"count":6,"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/pages\/4453\/revisions"}],"predecessor-version":[{"id":5543,"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/pages\/4453\/revisions\/5543"}],"wp:attachment":[{"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/media?parent=4453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/categories?post=4453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/protocols.nwforums.com\/index.php\/wp-json\/wp\/v2\/tags?post=4453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}