Big East champ Louisville was named the top-overall seed in the 2013 NCAA tournament's 68-team field announced on Sunday evening. Kansas, Indiana and Gonzaga joined the Cardinals as No. 1 regional seeds. The Big East led all conferences with eight teams invited, while seven Big 10 teams received bids to the tournament.

Returning champion Kentucky, Southern Miss, Maryland and Virginia were among the most notable teams left out of this year's field.

The 2013 NCAA tournament gets underway on Tuesday night with first-round games in Dayton, Ohio. Two more first-round contests in Dayton will follow on Wednesday. A full slate of games is scheduled for Thursday and Saturday at tournament sites in Auburn Hills, Mich.; Lexington, Ky.; Salt Lake City, Utah and San Jose, Calif. Friday's and Sunday's games are slated for Austin, Tex.; Dayton; Kansas City, Mo. and Philadelphia.

Regional finals are scheduled for Mar. 28-31 in Washington, D.C., Arlington, Tex, Indianapolis and Los Angeles. The Final Four is slated for the Georgia Dome in Atlanta on Saturday, Apr. 6, with the national championship game set for Monday, Apr. 8.

Here are the  full seeds for each region.

MIDWEST

1. Louisville
2. Duke
3. Michigan State
4. Saint Louis
5. Oklahoma State
6. Memphis
7. Creighton
8. Colorado State
9. Missouri
10. Cincinnati
11. (Play-in) Middle Tennessee
11. (Play-in) St. Mary's College
12. Oregon
13. New Mexico State
14. Valparaiso
15. Albany
16. (Play-in) North Carolina A&T
16. (Play-in) Liberty

SOUTH

1. Kansas
2. Georgetown
3. Florida
4. Michigan
5. VCU
6. UCLA
7. San Diego State
8. North Carolina
9. Villanova
10. Oklahoma
11. Minnesota
12. Akron
13. South Dakota State
14. Northwestern State
15. Florida Gulf Coast
16. Western Kentucky

EAST

1. Indiana
2. Miami
3. Marquette
4. Syracuse
5. UNLV
6. Butler
7. Illinois
8. North Carolina State
9. Temple
10. Colorado
11. Bucknell
12. California
13. Montana
14. Davidson
15. Pacific
16. (Play-in) LIU—Brooklyn
16. (Play-in) James Madison

WEST

1. Gonzaga
2. Ohio State
3. New Mexico
4. Kansas State
5. Wisconsin
6. Arizona
7. Notre Dame
8. Pittsburgh
9. Wichita State
10. Iowa State
11. Belmont
12. Ole Miss
13. (Play-in) La Salle
13. (Play-in) Boise State
14. Harvard
15. Iona
16. Southern