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<gallery>
==Table 2==
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</gallery>


{{IncludeFlash
|+'''Characteristics of Type A, B, and C Lesions'''
|flash_string=<flash>file=MM0041.swf|quality=best|align=center|width=400|height=400</flash>
|Description=LAD_6_AF_3_LCA_LAO
|file_name=MM0041
}}


{{IncludeFlash
|-
|flash_string=<flash>file=MM0042.swf|quality=best|align=center|width=400|height=400</flash>
! style="width:300px; border-bottom:1px solid darkgray; background-color:#f2f2f2" | Lesion-Specific Characteristics
|Description=LAD_6_AF_3_LCA_RAO_post
|file_name=MM0042
}}


{{IncludeFlash
|-
|flash_string=<flash>file=MM0043.swf|quality=best|align=center|width=400|height=400</flash>
| style="border-bottom:1px solid darkgray" | '''Type A lesions (minimally complex)'''
|Description=LAD_6_AF_3_LCA_RAO_pre
|-
|file_name=MM0043
| style="border-bottom:1px solid darkgray; padding-left:12px" | Discrete (length &lt;10 mm)
}}
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Concentric
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Readily accessible
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Nonangulated segment (&lt;45&deg;)
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Smooth contour
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Little or no calcification
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Less than totally occlusive
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Not ostial in location
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | No major side branch involvement
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Absence of thrombus


{{IncludeFlash
|-
|flash_string=<flash>file=MM0044.swf|quality=best|align=center|width=400|height=400</flash>
| style="border-bottom:1px solid darkgray" | '''Type B lesions (moderately complex)<sup>&lowast;</sup>'''
|Description=LAD_6_AF_3_RCA_LAO
|-
|file_name=MM0044
| style="border-bottom:1px solid darkgray; padding-left:12px" | Tubular (length 10 to 20 mm)
}}
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Eccentric
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Moderate tortuosity of proximal segment
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Moderately angulated segment (&gt;45&deg;, &lt;90&deg;)
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Irregular contour
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Moderate or heavy calcification
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Total occlusions &lt;3 mo old
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Ostial in location
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Bifurcation lesions requiring double guide wires
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Some thrombus present


{{IncludeFlash
|-
|flash_string=<flash>file=MM0045.swf|quality=best|align=center|width=400|height=400</flash>
| style="border-bottom:1px solid darkgray" | '''Type C lesions (severely complex)'''
|Description=LAD_7_3_LCA_caudal_pre
|-
|file_name=MM0045
| style="border-bottom:1px solid darkgray; padding-left:12px" | Diffuse (length &gt;2 cm)
}}
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Excessive tortuosity of proximal segment
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Extremely angulated segments &gt;90&deg;
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Total occlusions &gt;3 mo old and/or bridging collaterals
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Inability to protect major side branches
|-
| style="border-bottom:1px solid darkgray; padding-left:12px" | Degenerated vein grafts with friable lesions


{{IncludeFlash
|-
|flash_string=<flash>file=MM0046.swf|quality=best|align=center|width=400|height=400</flash>
| <ul>
|Description=LAD_7_3_LCA_LAO_pre
<li><sup>&lowast;</sup> Although the risk of abrupt vessel closure may be moderately high with Type B lesions, the likelihood of a major complication may be low in certain instances such as in the dilation of total occlusions &lt;3 mo old or when abundant collateral channels supply the distal vessel.</li>
|file_name=MM0046
</ul>
}}


{{IncludeFlash
|}
|flash_string=<flash>file=MM0047.swf|quality=best|align=center|width=400|height=400</flash>
|Description=LAD_7_3_LCA_RAO_post
|file_name=MM0047
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0048.swf|quality=best|align=center|width=400|height=400</flash>
|Description=LAD_7_3_LCA_RAO_pre
|file_name=MM0048
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0049.swf|quality=best|align=center|width=400|height=400</flash>
|Description=LAD_7_3_RCA_LAO
|file_name=MM0049
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0050.swf|quality=best|align=center|width=400|height=400</flash>
|Description=LAD_7_3_RCA_RAO
|file_name=MM0050
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0051.swf|quality=best|align=center|width=400|height=400</flash>
|Description=2_LCA_Normal_1_LAO
|file_name=MM0051
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0052.swf|quality=best|align=center|width=400|height=400</flash>
|Description=3_LCA_Normal_2_spider
|file_name=MM0052
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0053.swf|quality=best|align=center|width=400|height=400</flash>
|Description=4_LCA_normal_4_RAOCAUDAL
|file_name=MM0053
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0054.swf|quality=best|align=center|width=400|height=400</flash>
|Description=6_LCA_Normal_2_RCAUDAL
|file_name=MM0054
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0055.swf|quality=best|align=center|width=400|height=400</flash>
|Description=7_LCA_Normal_2_RAO
|file_name=MM0055
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0056.swf|quality=best|align=center|width=400|height=400</flash>
|Description=8_LCA_Normal_2_Cranial
|file_name=MM0056
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0057.swf|quality=best|align=center|width=400|height=400</flash>
|Description=9_LCA_Normal_2_L60
|file_name=MM0057
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0058.swf|quality=best|align=center|width=400|height=400</flash>
|Description=10_LCA_Normal_2_R30
|file_name=MM0058
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0059.swf|quality=best|align=center|width=400|height=400</flash>
|Description=11_LCA_Normal_2_RCranial
|file_name=MM0059
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0060.swf|quality=best|align=center|width=400|height=400</flash>
|Description=LCA_Normal_3_Rotational_RnaarL
|file_name=MM0060
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0061.swf|quality=best|align=center|width=400|height=400</flash>
|Description=Normal_LCA_Linksdominant_caudaal
|file_name=MM0061
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0062.swf|quality=best|align=center|width=400|height=400</flash>
|Description=Normal_LCA_Linksdominant_CC
|file_name=MM0062
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0063.swf|quality=best|align=center|width=400|height=400</flash>
|Description=Normal_LCA_Linksdominant_craniaal
|file_name=MM0063
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0064.swf|quality=best|align=center|width=400|height=400</flash>
|Description=Normal_LCA_Linksdominant_LAO
|file_name=MM0064
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0065.swf|quality=best|align=center|width=400|height=400</flash>
|Description=Normal_LCA_Linksdominant_RAO
|file_name=MM0065
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0066.swf|quality=best|align=center|width=400|height=400</flash>
|Description=Normal_LCA_Linksdominant_spider
|file_name=MM0066
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0067.swf|quality=best|align=center|width=400|height=400</flash>
|Description=Normal_RCA_Linksdominant
|file_name=MM0067
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0068.swf|quality=best|align=center|width=400|height=400</flash>
|Description=pericarditis_1_LCA_caudal
|file_name=MM0068
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0069.swf|quality=best|align=center|width=400|height=400</flash>
|Description=pericarditis_1_LCA_LAO
|file_name=MM0069
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0070.swf|quality=best|align=center|width=400|height=400</flash>
|Description=pericarditis_1_LCA_RAO
|file_name=MM0070
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0071.swf|quality=best|align=center|width=400|height=400</flash>
|Description=pericarditis_1_RCA_LAO
|file_name=MM0071
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0072.swf|quality=best|align=center|width=400|height=400</flash>
|Description=pericarditis_2_LCA_cuadal
|file_name=MM0072
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0073.swf|quality=best|align=center|width=400|height=400</flash>
|Description=pericarditis_2_LCA_RAO
|file_name=MM0073
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0074.swf|quality=best|align=center|width=400|height=400</flash>
|Description=pericarditis_2_LV
|file_name=MM0074
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0075.swf|quality=best|align=center|width=400|height=400</flash>
|Description=pericarditis_2_RCA_LAO
|file_name=MM0075
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0076.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_1_mooi_1_LCA_craniaal
|file_name=MM0076
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0077.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_1_mooi_1_LCA_RAO
|file_name=MM0077
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0078.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_1_mooi_1_RCA_LAO_post
|file_name=MM0078
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0079.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_1_mooi_1_RCA_LAO_pre
|file_name=MM0079
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0080.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_16_1_LCA_cranial
|file_name=MM0080
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0081.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_16_1_LCA_LAO
|file_name=MM0081
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0082.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_16_1_LCA_RAO
|file_name=MM0082
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0083.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_16_1_RCApost_LAO
|file_name=MM0083
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0084.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_16_1_RCApost_RAO
|file_name=MM0084
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0085.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_16_1_RCApre_LAO
|file_name=MM0085
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0086.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_Normal_1_Cranial
|file_name=MM0086
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0087.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_Normal_1_LAO
|file_name=MM0087
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0088.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_Normal_1_RAO
|file_name=MM0088
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0089.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_Normal_2_LAO
|file_name=MM0089
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0090.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCA_Normal_3_Rotational_RnaarL
|file_name=MM0090
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0091.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCX_11_1_LCA_caudal_post
|file_name=MM0091
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0092.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCX_11_1_LCA_caudal_pre
|file_name=MM0092
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0093.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCX_11_1_LCA_LAO
|file_name=MM0093
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0094.swf|quality=best|align=center|width=400|height=400</flash>
|Description=RCX_11_1_RCA_LAO
|file_name=MM0094
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0095.swf|quality=best|align=center|width=400|height=400</flash>
|Description=LAD_Bridging_1
|file_name=MM0095
}}
 
{{IncludeFlash
|flash_string=<flash>file=MM0096.swf|quality=best|align=center|width=400|height=400</flash>
|Description=LVangio_normal
|file_name=MM0096
}}

Latest revision as of 05:54, 17 September 2009

Table 2

Characteristics of Type A, B, and C Lesions
Lesion-Specific Characteristics
Type A lesions (minimally complex)
Discrete (length <10 mm)
Concentric
Readily accessible
Nonangulated segment (<45°)
Smooth contour
Little or no calcification
Less than totally occlusive
Not ostial in location
No major side branch involvement
Absence of thrombus
Type B lesions (moderately complex)∗
Tubular (length 10 to 20 mm)
Eccentric
Moderate tortuosity of proximal segment
Moderately angulated segment (>45°, <90°)
Irregular contour
Moderate or heavy calcification
Total occlusions <3 mo old
Ostial in location
Bifurcation lesions requiring double guide wires
Some thrombus present
Type C lesions (severely complex)
Diffuse (length >2 cm)
Excessive tortuosity of proximal segment
Extremely angulated segments >90°
Total occlusions >3 mo old and/or bridging collaterals
Inability to protect major side branches
Degenerated vein grafts with friable lesions
  • ∗ Although the risk of abrupt vessel closure may be moderately high with Type B lesions, the likelihood of a major complication may be low in certain instances such as in the dilation of total occlusions <3 mo old or when abundant collateral channels supply the distal vessel.
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