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Table 1 MRI Imaging Characteristics of LNMAC

From: MRI image sequencing of calcified myocardial masses: liquefaction necrosis of mitral annular calcification (LNMAC)

MRI SEQUENCE USED TO ASSESS LNMAC INTERIOR CHARACTERISTIC OF MASS BY MRI PERIPHERAL RING ENHANCEMENT
PHASE SENSITIVE/MAGNITUDE RECONSTRUCTION INVERSION RECOVERY (PSIR) WITH MYOCARDIAL NULLING HYPOINTENSE‡
‡signal intensity of central part of mass compared with surrounding myocardium
+++ (marked PERIPHERAL LATE GADOLINIUM ENHANCEMENT)
HASTE (T2 WEIGHTED SINGLE SHOT FSE) HYPOINTENSE‡ WITH HETEROGENEOUS INTERIOR COMPONENTS +++ (marked PERIPHERAL LATE GADOLINIUM ENHANCEMENT)
IR TURBOFLASH (ULTRA FAST GRADIENT LOW ANGLE SHOT T1 WEIGHTED) HYPOINTENSE‡ WITH HETEROGENEOUS INTERIOR COMPONENTS +++ (marked PERIPHERAL LATE GADOLINIUM ENHANCEMENT)
GRE (SPOILED GRADIENT ECHO) HYPERINTENSE CENTER AND HYPOINTENSE RIM‡ NONE
TRUE FISP (STEADY STATE GRE MIXED T1 AND T2 WEIGHTING) HYPOINTENSE‡ NONE
INVERSION RECOVERY TRUE FISP (SINGLE SHOT NON-BREATH HOLD TECHNIQUE HYPOINTENSE‡ ++
STIR (SHORT TAU IR OR TRIPLE INVERSION RECOVERY) HYPOINTENSE‡ ++
T2 TURBO SPIN (DARK BLOOD) ECHO (TSE) HYPOINTENSE‡ ++
T1 TURBO SPIN ECHO FAT SAT POST CONTRAST DARK BLOOD (TSE) HYPOINTENSE‡ WITH HETEROGENEOUS INTERIOR COMPONENTS NONE