diff --git a/scripts/03_scan_lee_t1c.py b/scripts/03_scan_lee_t1c.py
index c1fc6cf..f55af40 100644
--- a/scripts/03_scan_lee_t1c.py
+++ b/scripts/03_scan_lee_t1c.py
@@ -21,7 +21,14 @@ BASE = path("lee")
 T1_NAME_RE = re.compile(r"t1|tfl|spgr|mp2rage|tse3d|vfl|mpage", re.I)
 # fiesta/ciss/ssfp: balanced-SSFP (fluid-bright, T2-dominant) — their short TE
 # fools the seq/TE fallback below, so they are excluded by name, not T1c
-EXCL_RE = re.compile(r"\bt2\b|dwi|dti|mra|mrv|angi|swi|bold|\bpp2d|\bpp3d|perf|t2\*|t2star|fiesta|ciss|ssfp", re.I)
+# tof: time-of-flight MRA (angiographic; "spgr" in the name matches T1_NAME_RE)
+# sub/subtraction: post/pre subtraction images (KVP carries POST CONTRAST);
+# "sub" = the token prefix followed by any non-letter (sub_s16, sub:3d,
+# _SUB, sub. — but not "subject"/"subtraction", handled separately)
+EXCL_RE = re.compile(r"\bt2\b|dwi|dti|mra|mrv|angi|swi|bold|\bpp2d|\bpp3d|perf|t2\*|t2star"
+                     r"|fiesta|ciss|ssfp"
+                     r"|(?<![a-z])tof(?![a-z])"
+                     r"|sub(?![a-z])|subtraction", re.I)
 
 
 def parse_txt(p):