TIMI flow grade 1

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Coronary Angiography

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General Principles

Overview
Historical Perspective
Contraindications
Appropriate Use Criteria for Revascularization
Complications
Technique
Film Quality

Anatomy & Projection Angles

Normal Anatomy

Coronary arteries
Dominance
Right System
Left System
Left Main
Left Anterior Descending
Circumflex
Median Ramus

Anatomic Variants

Separate Ostia
Anomalous Origins
Case Example
Fistula

Projection Angles

Standard Views
Left Coronary Artery
Right Coronary Artery

Epicardial Flow & Myocardial Perfusion

Epicardial Flow

TIMI Frame Count
TIMI Flow Grade
TIMI Grade 0 Flow
TIMI Grade 1 Flow
TIMI Grade 2 Flow
TIMI Grade 3 Flow
TIMI Grade 4 Flow
Pulsatile Flow
Deceleration

Myocardial Perfusion

TIMI Myocardial Perfusion Grade
TMP Grade 0
TMP Grade 0.5
TMP Grade 1
TMP Grade 2
TMP Grade 3

Lesion Complexity

ACC/AHA Lesion-Specific Classification of the Primary Target Stenosis

Preprocedural Lesion Morphology

Eccentricity
Irregularity
Ulceration
Intimal Flap
Aneurysm
Sawtooth Pattern
Length
Ostial location
Angulation
Proximal tortuosity
Degenerated SVG
Calcification
Total occlusion
Coronary Artery Thrombus
TIMI Thrombus Grade
TIMI Thrombus Grade 0
TIMI Thrombus Grade 1
TIMI Thrombus Grade 2
TIMI Thrombus Grade 3
TIMI Thrombus Grade 4
TIMI Thrombus Grade 5
TIMI Thrombus Grade 6

Lesion Morphology

Quantitative Coronary Angiography
Definitions of Preprocedural Lesion Morphology
Irregular Lesion
Disease Extent
Arterial Foreshortening
Infarct Related Artery
Restenosis
Degenerated SVG
Collaterals
Aneurysm
Bifurcation
Trifurcation
Ulceration

Left ventriculography

Technique
Quantification of LV Function
Quantification of Mitral Regurgitation

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Definition

Penetration without perfusion. Contrast material passes beyond the area of obstruction but fails to opacify the entire coronary bed distal to the obstruction for the duration of the cineangiographic filming sequence.[1] [2] [3]

This category is subdivided into:

  • 1.0: dye minimally leaks past the area of obstruction.
  • 1.5: dye leaks well past the area of obstruction but fails to opacify the entire coronary bed prior to the end of cinefilming. Had cinefilming continued longer, dye may have reached the landmark.

Example

TIMI Flow Grade 1 - Left Anterior Descending Artery
TIMI Flow Grade 1.5 - Left Anterior Descending Artery

Additional Examples

Click here for other examples of TIMI flow grade 1.

References

  1. ↑ Gibson, CM; Ryan, K; Sparano, A; Rizzo, M; Moynihan, J; Kelley, M; Marble, SJ; Dodge, JT; Antman, EM. Methodologic drift in the assessment of TIMI grade 3 flow and its implications with respect to the reporting of angiographic trial results. Am Heart J. 1999;137:1179–1184. PMID 10347349
  2. ↑ Gibson CM, Cannon CP, Daley WL, Dodge JT Jr, Alexander B Jr, Marble SJ, McCabe CH, Raymond L, Fortin T, Poole WK, Braunwald E. TIMI frame count: a quantitative method of assessing coronary artery flow. Circulation. 1996 Mar 1;93(5):879-88. PMID 8598078
  3. ↑ Gibson CM, Murphy S, Menown IB, Sequeira RF, Greene R, Van de Werf F, Schweiger MJ, Ghali M, Frey MJ, Ryan KA, Marble SJ, Giugliano RP, Antman EM, Cannon CP, Braunwald E. Determinants of coronary blood flow after thrombolytic administration. TIMI Study Group. Thrombolysis in Myocardial Infarction. J Am Coll Cardiol. 1999 Nov 1;34(5):1403-12. PMID 10551685


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