Implant sizing - Rice test and sizers not accurate? (photo)

Although useful as rough guidelines and as communication tools, all the modalities currently used to predict what breast implant size/profile will best achieve a patient's goals with breast augmentation are NOT very accurate, in my opinion. The use of the rice test, sizers placed beneath a patient's bra, goal pictures, computer imaging technology… are all useful, but not necessarily as accurate as one would hope.
In my opinion, nothing will replace careful verbal preoperative communication with your plastic surgeon, preferably in front of a full-length mirror along with the use of as many "communication" tools” listed above.
In my practice, I use all of the above modalities and then use intraoperative temporary sizers to help determine the best breast implant size/profile to achieve a patient's specific goals as closely as possible. For this reason, I think it is helpful to have the entire range of breast implant sizes/profiles available in the upper room.
Achieving realistic expectations prior to proceeding to the operating room is also an important part of the preoperative communication process. Patients should be aware that the results of their breast augmentation will not necessarily match exactly what they are visualizing with anyone of the above-mentioned communication tools.
In my opinion, it is not possible to accurately determine how many ccs (if any) a patient would “lose” when undergoing sub muscular breast augmentation surgery. I suggest patients do not make decisions based on statement such as: “you will lose 25 or 50 cc of volume when breast implants are placed under the muscle”. These statements are simply not reliable enough… 
Given your questions and concerns, I would suggest that you schedule additional time to spend with your plastic surgeon. This additional time spent will be helpful in the communication process and in alleviating some of your anxiety.
Best wishes; hopefully you will be very pleased with the outcome of the planned procedure.

implant size
The best way to pick implant size is based on your breast and chest width and not the volume. As the implants get bigger, they get wider. When the width of the implant fits the width of your chest, it will look nice and fit your frame. If the implants are too small, you will have a gap between them and they may look too far apart. If they are too wide, they will make you look top heavy as they may be too wide and stick well out past the sides of your chest. There are ways to get a bigger or smaller look.This can be done by picking a different implant profile. The higher the profile, the narrower the base width of the implant. If someone has a very narrow chest and wants to be big, they should consider a higher profile implant. If someone has a broad chest and they do not want to be too big but want to avoid the gap and still have cleavage without projection, they should consider a lower profile implant such as a moderate. There are options in between these such as the moderate plus. I prefer the underarm approach so there is no scar on your breast. The new silicone is the only way to go as far a rippling as the new silicone ripples much less than saline, especially in the larger implants. I personally prefer the smooth round implants under the muscle placed through the under arm to give you the most natural look and feel. This also leaves you no scar on your breast.  Dr Scott Ennis - Plastic Surgeon – Destin and Miami , Fl