Measuring endometrial thickness in ovulation induction process

1-10-19

Why the A,B, & C  types of endometrial pattern which was quite popular in the late eighties and early ninties have become unpopular?? It is akin to unpopularity of POP-Q quantitive classification  of genital prolapse which never gained popularity.  Problem :-Endometrial     pattern  was frequently reported as  (initially described  in 1984 )-  any of three  patterns. These are namely   type A, a  multilayered triple line endometrium  consisting of a prominent outer   line or layer a central hyperechogenic   line and an inner hyperechogenic or   black    region , type B    an intermediate isoechogenic  pattern with the same reflectivity     as the surrounding  myometrium and type C   :-  a non   prominent   or absent central echogenic   line an entirely   homogeneous   endometrium without    a central   echogenic   line. But there was subsequently others reversed  the ABC   pattern and people had confusions!!! 

However, most present   day gynae spl   no longer use ABC   pattern. Why?? -What is the members view on not being popular method of classification of endometrium? By contrast people are now switched over to  previous terminology  i.e. in descriptive pattern . to avoid any ambiguity. However still some Sonologist at Kolkata still report in the format as ABC system of endometrial echogenecity & other adjectives .But we should be aware that any methodology is correct. One may follow either classification  system  .

Most present    day authors  no longer use ABC   classification but instead use  the terms A)   triple  line and homogeneous   to describe   the two most  common endometrial  patterns. A third term post ovulation     is used to    describe the B)  bright pattern seen  during  the mid luteal  phase.