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Ultrasonography (Radiology, Books): Amazon KDP category data
Amazon Books Best Sellers data for Ultrasonography (Radiology, Books), updated Nov 2, 2026: median price $81.99, median 14 reviews, average rating 4.6 and a KDPTop opportunity score of 32/100 (highly competitive).
| Price range (middle 50%) | $56.28 – $133 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 9% |
| Books on the list | 100 |
| Store | Books |
What stands out
- At $81.99 its median price beats 99% of Books categories, leaving more margin per copy.
- Its median reviews are 31% of the parent category Radiology (47), one of the easier corners under it.
- Its review barrier is lower than in 78% of Books categories: the median best seller has only 14 reviews, so new books can chart with few.
Top 10 Ultrasonography best sellers
-
Critical Care and Hospitalist Medicine Made Ridiculously Simple
by Michael Donahoe M.D.
- List rank#1
- Price$59.95
- Rating4.7
- Reviews748
-
Examination Review for Ultrasound: Abdomen and Obstetrics & Gynecology
by STEVEN M. PENNY MA RT(R)) RDMS
- List rank#2
- Price$94.48
- Rating4.6
- Reviews236
-
Vascular Technology: An Illustrated Review
by RN Rumwell, Claudia
- List rank#3
- Price$99.95
- Rating4.8
- Reviews333
-
Introduction to Sonography and Patient Care
by Steven M. Penny M.A. RT (R) RDMS
- List rank#4
- Price$79.98
- Rating4.6
- Reviews189
-
Radiology for Beginners: Breaking Down the Basics of Medical Terminology and Vocabulary for High School / College Students and Patients (Medical Terms Made Clear)
- List rank#5
- Price$15.99
- Rating4.3
- Reviews9
-
Sonography Tech: QuickStudy Laminated Reference Guide
by Kathryn Almquist
- List rank#6
- Price$5.95
- Rating4.6
- Reviews295
-
Textbook of Diagnostic Sonography: 2-Volume Set
by Sandra L. Hagen-Ansert MS RDMS RDCS FASE FSDMS
- List rank#7
- Price$338
- Rating4.8
- Reviews57
-
Textbook of Clinical Echocardiography
by Catherine M. Otto MD
- List rank#8
- Price$138
- Rating4.6
- Reviews52
-
Sonographer Coloring Book: Hilarious and Funny Coloring Book Gift For Sonographers and Ultrasound Techs
by Abhiramiii Gokulamna Publishing
- List rank#9
- Price$9.99
- Rating5.0
- Reviews2
-
50 Human Studies, in Utero, Conducted in Modern China, Indicate Extreme Risk for Prenatal Ultrasound: A New Bibliography
by Jim West
- List rank#10
- Price$9.99
- Rating4.8
- Reviews72
FAQ
Is Ultrasonography a good niche for Amazon KDP?
Its KDPTop opportunity score is 32/100, which makes it highly competitive. The median best seller has 14 reviews and sells for $81.99.
How many reviews do you need to rank in Ultrasonography?
The median best seller has 14 reviews, and 86% of them have fewer than 100.
What do Ultrasonography best sellers cost?
The median price is $81.99; half of the best sellers are priced between $56.28 and $133.
Can new books break into Ultrasonography?
9% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.