2, 8, 13, 14, 15, 16 Recently, a systematic review 17 aimed to investigate the best method to screen for DRAM presence and monitor DRAM width. 11ĭigital calipers have also been reported as a method to measure the IRD and thus to diagnose DRAM, and it has been used in several studies. One study demonstrated it as an accuracy method of measuring DRAM, especially in the supraumbilical (SU) level and at the umbilicus. 11, 13 Therefore, ultrasonography (USG) has been proposed as an alternative to evaluate the abdominal wall, especially during pregnancy. However, besides being an expensive method, it exposes the patient to radiation, and thus it cannot be used on pregnant women. 11, 12, 13Ĭurrently, the method of choice considered the gold standard for evaluation of the abdominal wall and hence measurement of DRAM is the computed tomography scan. However, the current literature points out that subcutaneous fat and excessive abdominal flabbiness can interfere with measurements and that the finger's width may vary among people, which makes palpation an unreliable method to diagnose DRAM. ![]() At first, palpation was the method used to measure the IRD, 5, 9, 10 and in these cases it was considered DRAM if the IRD was greater than 2 fingers. 3 The variety of measurement methods used among the studies leads to a lack of standardization, making it difficult to compare their findings. Several methods to diagnose this condition have been reported in literature. 3, 6 Although this condition does not directly cause discomfort or pain, in cases of excessive strain, it may interfere with abdominal muscle functionality and generate greater predisposition to various disorders such as back pain and aesthetic and urogynecological problems. The DRAM may lead to severe implications for the abdomen, resulting in sagging and bulging of the abdominal wall. 4 The prevalence in the pregnant population varies among studies from 30% to 70% in the third gestational trimester. 1, 2, 3 It is associated with genetic factors, and with conditions such as obesity, excessive weight loss, excess exercise, and pregnancy. A UL listed AC adapter is included.The diastasis of the rectus abdominis muscle (DRAM) is defined as a separation of the muscle beams of the rectus abdominis from the linea alba, which increases the interrecti distance (IRD). Power input requirement is 5 VDC at at less than 1 Amp. Calibration or calibration reselection must be made any time the optics or distance between the image sensor and the object under scrutiny change. ![]() For instance, calibration can be made in inches and readings taken in centimeters. Units are automatically converted in order to preserve calibration if they are changed. The cursors can be individually set to a variety of colors, and provide adjustable width and intensity/transparancy.įour separate dimensional calibrations can be stored for easy recall and use. An on-screen display, of adjustable size and position indicates the measurement in a variety of selectable units. This arrangement allows comparison of objects across the image without disturbing the relationship between the cursors. The second control moves both cursors across the screen while maintaining the distance and angle between them. In most modes, one control sets the distance or angle between the cursors by moving one cursor only. The user can adjust the position and rotation of these cursors by means of front panel controls. ![]() The Video Caliper superimposes two vertical, horizontal, or diagonal, cursor lines, or two cursor points onto the video display.
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